{"event":"ecommerce_event","event_name":"view_item","event_category":"browse_catalog","ecommerce":{"items":[{"item_id":"JLJ4690385","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"vernet_carle_1758_1836","item_category5":"not_balown","item_list_name":"search_results","item_name":"geographers_of_the_polytechnic_school_period_of_the_campaign_of_egypt_1798_1801_19th_century_engravi","item_variant":"undefined"},{"item_id":"XIR165560","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"avion_iii_the_bat_designed_by_clement_ader_1841_1925_at_the_satory_military_camp_october_1897_engrav","item_variant":"undefined"},{"item_id":"CHT177840","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"regamey_frederic_c_1849_1925_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_siege_of_bourges_during_the_invasion_of_gaul_by_julius_caesar_100_44_bc_from_a_protective_sleeve","item_variant":"undefined"},{"item_id":"PCT7211840","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_students_of_the_ecole_polytechnique_forming_with_their_bodies_the_inscription_vive_la_jaune_circ","item_variant":"undefined"},{"item_id":"NYL745503","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"german_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"frederick_the_great_inspecting_the_construction_of_the_bomberger_canals_litho","item_variant":"undefined"},{"item_id":"BOF703464","item_category":"footage","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"battle_of_china_dr_sun_yat_sen_japanese_army_and_invasion_of_china_1937","item_variant":"undefined"},{"item_id":"XIR224433","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_18th_century","item_category5":"balown","item_list_name":"search_results","item_name":"catapult_engraving_b_w_photo","item_variant":"undefined"},{"item_id":"STC182335","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"roman_battering_rams_from_the_encyclopedie_des_sciences_et_metiers_by_denis_diderot_1713_84_publishe","item_variant":"undefined"},{"item_id":"STC420673","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"soldiers_possibly_building_a_pontoon_bridge_or_siege_engine_possibly_from_trajan_s_column_from_custo","item_variant":"undefined"},{"item_id":"LLM2782722","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"european_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"leonardo_da_vinci_presenting_cesare_borgia_with_designs_for_fortifications_chromolitho","item_variant":"undefined"},{"item_id":"LLM1094031","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"marshal_vauban_french_military_engineer_chromolitho","item_variant":"undefined"},{"item_id":"STC418203","item_category":"illustration","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"german_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"groundbreaking_ceremony_for_beginning_the_construction_of_the_german_motorway_system_frankfurt_am_ma","item_variant":"undefined"},{"item_id":"PNP693313","item_category":"object","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"german_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"german_oak_leaf_pattern_eichenlaubmuster_in_green_spring_colouration_textile","item_variant":"undefined"},{"item_id":"BOF6284234","item_category":"footage","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_start_of_the_computer_age_1944","item_variant":"undefined"},{"item_id":"PCT7211831","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"ecole_polytechnique_students_disguised_during_a_show_in_1929_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211835","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"ecole_polytechnique_students_in_a_study_room_in_1929_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211841","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_students_of_the_ecole_polytechnique_forming_with_their_bodies_the_inscription_chic_a_la_jone_192","item_variant":"undefined"},{"item_id":"PCT7211862","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"evolution_of_the_ecole_polytechnique_uniform_between_1796_and_1894_1894_illustration","item_variant":"undefined"},{"item_id":"PCT7211838","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"ecole_polytechnique_students_forming_a_big_x_in_the_courtyard_1929_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211833","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"students_of_the_ecole_polytechnique_giving_a_show_in_1929_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211834","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"students_of_the_ecole_polytechnique_giving_a_show_in_1929_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211832","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"students_of_the_ecole_polytechnique_giving_a_show_in_1929_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211483","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"gerschel_charles_1871_1948","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_a_student_of_the_ecole_polytechnique_early_twentieth_century_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211846","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"meyer_henri_1841_99","item_category5":"not_balown","item_list_name":"search_results","item_name":"monome_of_the_students_of_the_ecole_polytechnique_in_the_courtyard_of_the_school_1890_engraving","item_variant":"undefined"},{"item_id":"LIP1601895","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"navvies_for_the_crimea_engraving","item_variant":"undefined"},{"item_id":"PCT7211860","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"ecole_polytechnique_students_in_the_library_decorated_with_busts_of_the_school_s_founders_early_20th","item_variant":"undefined"},{"item_id":"PCT7211839","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_students_of_the_ecole_polytechnique_forming_with_their_bodies_the_inscription_vive_la_rouge_1911","item_variant":"undefined"},{"item_id":"PCT7211845","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"meyer_henri_1841_99","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_course_in_the_amphitheater_of_the_ecole_polytechnique_1890_engraving","item_variant":"undefined"},{"item_id":"PCT7211836","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"ecole_polytechnique_students_practicing_gymnastics_early_20th_century_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211848","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"meyer_henri_1841_99","item_category5":"not_balown","item_list_name":"search_results","item_name":"evolution_of_the_ecole_polytechnique_uniform_between_1809_and_1890_1890_engraving","item_variant":"undefined"},{"item_id":"LIP1061187","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"sketches_at_the_school_of_military_engineering_chatham_engraving","item_variant":"undefined"},{"item_id":"PCT7211837","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"ecole_polytechnique_students_practicing_gymnastics_early_20th_century_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211859","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"ecole_polytechnique_students_practicing_gymnastics_early_20th_century_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211864","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"ecole_polytechnique_students_practicing_in_the_fencing_hall_early_20th_century_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211843","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"ferdinandus_alexandre_avenet_francois_called_1850_1888","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_feast_of_point_gamma_at_the_ecole_polytechnique_1878_engraving","item_variant":"undefined"},{"item_id":"PCT7211842","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"centenary_of_the_ecole_polytechnique_inauguration_of_the_commemorative_plaque_of_the_pupils_who_died","item_variant":"undefined"},{"item_id":"PCT7211847","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"evolution_of_the_ecole_polytechnique_uniform_between_1800_and_1903_engraving","item_variant":"undefined"},{"item_id":"PCT7211863","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"polytechnic_school_chemistry_amphitheater_early_20th_century_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211844","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"ecole_polytechnique_pupils_maneuvering_near_verdun_circa_1918_b_w_photo","item_variant":"undefined"},{"item_id":"XIR239597","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_16th_century","item_category5":"balown","item_list_name":"search_results","item_name":"roman_war_machine_for_firing_javelins_engraving_b_w_photo","item_variant":"undefined"},{"item_id":"XIR213104","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_16th_century","item_category5":"balown","item_list_name":"search_results","item_name":"roman_war_machine_for_firing_spears_engraving_b_w_photo","item_variant":"undefined"},{"item_id":"BL243107","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_15th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"add_24945_fol_194_design_for_a_siege_engine_from_de_re_militari_by_robertus_valturius_litho","item_variant":"undefined"},{"item_id":"IWM3738175","item_category":"illustration","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"british_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"smooth_finish_perfect_flight_1945_litho","item_variant":"undefined"},{"item_id":"DUV6523474","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"s_t_sapeur_turco","item_variant":"undefined"},{"item_id":"SZT2981837","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"adolescent_in_the_junkers_plant_1941_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211865","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"ecole_polytechnique_honor_hall_early_20th_century_b_w_photo","item_variant":"undefined"},{"item_id":"PCT7211851","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"patrice_cartier","item_category5":"not_balown","item_list_name":"search_results","item_name":"entrance_to_the_ecole_polytechnique_de_paris_early_20th_century_b_w_photo","item_variant":"undefined"},{"item_id":"DUV6523473","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"q_r_s_t_stop_there_who_lives_officer_s_round_sapper_turco","item_variant":"undefined"},{"item_id":"SZT2981836","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"adolescent_in_the_junkers_plant_1941_b_w_photo","item_variant":"undefined"},{"item_id":"LLM668808","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"ecole_polytechnique_paris_chromolitho","item_variant":"undefined"},{"item_id":"SZT3667771","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"instruction_at_the_naval_intelligence_school_muerwik_1935_b_w_photo","item_variant":"undefined"},{"item_id":"BL243108","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"italian_school_15th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"add_24945_fol_90_design_for_a_siege_engine_from_de_re_militari_by_robertus_valturius_colour_litho","item_variant":"undefined"},{"item_id":"LLJ605005","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"general_view_of_hungerford_and_lambeth_suspension_foot_bridge_engraving","item_variant":"undefined"},{"item_id":"NAM3043139","item_category":"object","item_category2":"no_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"cap_badge_1954_metal","item_variant":"undefined"},{"item_id":"LLM3655477","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"le_general_annenkoff_engraving","item_variant":"undefined"},{"item_id":"DGA5195281","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"cenni_quinto_1845_1917","item_category5":"not_balown","item_list_name":"search_results","item_name":"engraving_from_drawing_by_quinto_cenni_from_l_illustrazione_italiana_no_28_july_13_1884","item_variant":"undefined"},{"item_id":"LLM5998989","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"german_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"german_army_engineers_building_a_railway_colour_litho","item_variant":"undefined"},{"item_id":"LLM2779213","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"terrible_accident_during_a_bridging_exercise_on_the_river_isere_france_colour_litho","item_variant":"undefined"},{"item_id":"LLM5998975","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"european_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"german_army_engineers_building_a_bridge_colour_litho","item_variant":"undefined"},{"item_id":"SZT330584","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"german_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"japanese_army_in_china_during_the_second_sino_japanese_war_1937_45_b_w_photo","item_variant":"undefined"},{"item_id":"LLM2818763","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"french_soldiers_on_mountain_manoeuvres_in_the_vosges_colour_litho","item_variant":"undefined"},{"item_id":"BMS834310","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"american_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"32_pounder_seacoast_gun_barrel_taken_from_the_official_u_s_army_s_instruction_for_heavy_artillery_ma","item_variant":"undefined"},{"item_id":"STC182333","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"roman_siege_machinery_from_the_encyclopedie_des_sciences_et_metiers_by_denis_diderot_1713_84_publish","item_variant":"undefined"},{"item_id":"JLJ7575343","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"german_military_engineering_school_germany_1944_b_w_photo","item_variant":"undefined"},{"item_id":"SZT3668247","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"members_of_the_bdm_werk_glaube_und_schoenheit_bdm_work_faith_and_beauty_society_play_theater_1942_b_","item_variant":"undefined"},{"item_id":"DGC3557527","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"view_of_eiffel_tower_and_ecole_militaire_from_pont_d_iena_paris_france_photo_1894","item_variant":"undefined"},{"item_id":"STC182334","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"roman_ballistic_machinery_from_the_encyclopedie_des_sciences_et_metiers_by_denis_diderot_1713_84_pub","item_variant":"undefined"},{"item_id":"BMS834312","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"american_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"32_pounder_seacoast_gun_mounted_on_a_barbette_carriage_seen_from_above_from_the_official_u_s_army_s_","item_variant":"undefined"},{"item_id":"CHT307454","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"roman_catapults_engraved_by_soltukon_late_18th_century_colour_litho","item_variant":"undefined"},{"item_id":"LIP1620642","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_paris_international_exhibition_engraving","item_variant":"undefined"},{"item_id":"LLM8675809","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_stages_in_the_design_and_productuon_of_a_typical_aeroplane_litho","item_variant":"undefined"},{"item_id":"LLM6016282","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_forth_bridge_engraving","item_variant":"undefined"},{"item_id":"BMS834313","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"american_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"platform_for_mounting_heavy_mortars_from_the_official_u_s_army_s_instruction_for_heavy_artillery_man","item_variant":"undefined"},{"item_id":"BMS834314","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"american_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"platform_for_mounting_heavy_mortars_from_the_official_u_s_army_s_instruction_for_heavy_artillery_man","item_variant":"undefined"},{"item_id":"LLM6016228","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_forth_bridge_engraving","item_variant":"undefined"},{"item_id":"LLM5998754","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"french_army_engineers_coloured_engraving","item_variant":"undefined"},{"item_id":"LLE5232223","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"german_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"member_of_organisation_todt_civil_and_military_engineering_group_of_the_german_third_reich_nazi_prop","item_variant":"undefined"},{"item_id":"NAM2973889","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"telegraph_map_of_upper_egypt_1882_litho","item_variant":"undefined"},{"item_id":"LLM5998756","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"french_army_artillery_building_pontoon_bridges_coloured_engraving","item_variant":"undefined"},{"item_id":"CH1197497","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"frere_charles_theodore_bey_1814_88","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_empress_eugenie_visiting_the_pyramids_oil_on_canvas","item_variant":"undefined"},{"item_id":"LLM6016283","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_forth_bridge_engraving","item_variant":"undefined"},{"item_id":"BMS834311","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"american_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"24_pounder_seacoast_gun_mounted_on_a_barbette_carriage_with_a_detailed_nomenclature_of_its_parts_tak","item_variant":"undefined"},{"item_id":"LLM7148370","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"great_wall_of_china_engraving","item_variant":"undefined"},{"item_id":"LLM6016246","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_gun_factory_of_the_forges_et_chantiers_de_la_mediterranee_havre_engraving","item_variant":"undefined"},{"item_id":"LLM6016251","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_forth_bridge_engraving","item_variant":"undefined"},{"item_id":"LLM1092654","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"american_school_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_rodman_gun_engraving","item_variant":"undefined"},{"item_id":"UIS5071768","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"sir_charles_william_pasley_scottish_military_engineer_1854_1866","item_variant":"undefined"},{"item_id":"EVB7067382","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"scenes_of_west_point_where_ulysses_grant_received_a_military_and_engineering_education_from_1839_to_","item_variant":"undefined"},{"item_id":"LCS7223898","item_category":"footage","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"technical_university_berlin","item_variant":"undefined"},{"item_id":"CCI2436284","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"german_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_atlantic_wall_1942_illustration","item_variant":"undefined"}]}}

{"event":"custom_event","event_name":"view_search_result","event_category":"browse_catalog","keyword":"school of military engineering","search_type":"standard","search_bridgeman_artists":"false","search_mode":"automatic","search_zero_result":"false","search_results":105,"search_results_page_number":1}