{"event":"ecommerce_event","event_name":"view_item","event_category":"browse_catalog","ecommerce":{"items":[{"item_id":"LLM2813723","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":"edison_s_tinfoil_phonograph_the_first_practical_machine_engraving","item_variant":"undefined"},{"item_id":"LLM2792216","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_marquis_of_worcester_s_first_idea_of_the_steam_engine_colour_litho","item_variant":"undefined"},{"item_id":"UIG681389","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"george_westinghouse_photo","item_variant":"undefined"},{"item_id":"LLM2813761","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":"departure_of_the_clermont_on_her_first_voyage_engraving","item_variant":"undefined"},{"item_id":"LLM2813762","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":"fulton_blowing_up_a_danish_brig_engraving","item_variant":"undefined"},{"item_id":"KWE274246","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"pickersgill_henry_william_1782_1875_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"michael_faraday_engraved_by_j_cochran_from_national_portrait_gallery_volume_v_published_c_1835_litho","item_variant":"undefined"},{"item_id":"LLM3628004","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":"professor_d_e_hughes_frs_engraving","item_variant":"undefined"},{"item_id":"GEG1779595","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"pnydre_n_3","item_variant":"undefined"},{"item_id":"UIG681401","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"william_roentgen_photo","item_variant":"undefined"},{"item_id":"LLM2813721","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":"edison_s_menlo_park_electric_locomotive_1880_engraving","item_variant":"undefined"},{"item_id":"LLM2813728","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":"exterior_of_the_blacksmith_shop_where_the_first_reaper_was_built_engraving","item_variant":"undefined"},{"item_id":"UIG681480","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"gugliemo_marconi_photo","item_variant":"undefined"},{"item_id":"LLM2793030","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_birth_place_of_the_first_sir_robert_peel_at_blackburn_engraving","item_variant":"undefined"},{"item_id":"LLM2793039","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":"ramage_s_telescope_engraving","item_variant":"undefined"},{"item_id":"LLM2813724","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":"from_edison_s_newspaper_the_grand_trunk_herald_engraving","item_variant":"undefined"},{"item_id":"UIG3479962","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"transmitting_table_and_keyboard_of_the_hughes_printing_telegraph_1859","item_variant":"undefined"},{"item_id":"UIG3479959","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"electromagnetic_printing_telegraph_1850","item_variant":"undefined"},{"item_id":"UIG3480015","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"ronald_s_dial_telegraph_and_line_1882","item_variant":"undefined"},{"item_id":"LLE815931","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"wright_joseph_1756_93_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"richard_arkwright_engraving","item_variant":"undefined"},{"item_id":"LAL957590","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"edison_sold_newspapers_on_trains_one_day_he_accidentally_set_a_carriage_on_fire_colour_litho","item_variant":"undefined"},{"item_id":"GEG1780102","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"les_freres_montgolfier","item_variant":"undefined"},{"item_id":"LLM2813753","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":"under_side_of_a_modern_switchboard_showing_2_000_wires_engraving","item_variant":"undefined"},{"item_id":"LLM2793033","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":"mouth_of_coal_pit_brosely_salop_engraving","item_variant":"undefined"},{"item_id":"LLM2793035","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":"napier_s_platten_machine_engraving","item_variant":"undefined"},{"item_id":"UIG3735509","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"j_f_walter_s_tricycle_roller_skate","item_variant":"undefined"},{"item_id":"LLM3628003","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":"lord_armstrong_engraving","item_variant":"undefined"},{"item_id":"XRH1715543","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"model_of_a_phonoscop_created_by_georges_demeny_in_1891","item_variant":"undefined"},{"item_id":"UIG3479961","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"david_hughes_s_printing_telegraph_1891","item_variant":"undefined"},{"item_id":"UIG3479293","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"alexander_graham_bell_1876","item_variant":"undefined"},{"item_id":"LIP1598918","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_photographer_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"mr_newman_inventor_of_the_electric_gun_b_w_photo","item_variant":"undefined"},{"item_id":"CBF152323","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"brandmuller_michael_1793_1852_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"theobald_bohm_1794_1881_engraved_by_selb_litho","item_variant":"undefined"},{"item_id":"LAL2816552","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"charles_parsons_the_man_who_was_to_revolutionise_the_power_of_steam_litho","item_variant":"undefined"},{"item_id":"LLM2813736","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":"sectional_view_of_monitor_through_turret_and_pilot_house_engraving","item_variant":"undefined"},{"item_id":"LIP1061382","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":"mr_thomas_holloway_engraving","item_variant":"undefined"},{"item_id":"UIG3078317","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"sir_henry_bessemer","item_variant":"undefined"},{"item_id":"LLM2793036","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":"cowper_s_double_cylinder_machine_engraving","item_variant":"undefined"},{"item_id":"LLM3099641","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_photographer_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"james_nasmyth_scottish_engineer_with_his_steam_hammer_b_w_photo","item_variant":"undefined"},{"item_id":"OLA247399","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"alexander_graham_bell_1847_1922_b_w_photo","item_variant":"undefined"},{"item_id":"LIP1609597","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":"claret_jug_and_silver_presented_to_mr_smith_the_inventor_of_the_screw_propeller_engraving","item_variant":"undefined"},{"item_id":"LIP1593147","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"english_school_20th_century_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_late_lord_armstrong_inventor_of_the_armstrong_gun_engraving","item_variant":"undefined"},{"item_id":"LLM976959","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"english_photographer_20th_century_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"davy_monument_market_jew_street_penzance_coloured_photo","item_variant":"undefined"},{"item_id":"LLM2813744","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":"charles_goodyear_s_exhibition_of_hard_india_rubber_goods_at_the_crystal_palace_sydenham_england_engr","item_variant":"undefined"},{"item_id":"LLM2813751","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":"morse_making_his_own_instrument_engraving","item_variant":"undefined"},{"item_id":"HLR3741158","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"chris_hellier","item_category5":"not_balown","item_list_name":"search_results","item_name":"portrait_of_isambard_kingdom_brunel_english_mechanical_civil_engineer_1884_engraving","item_variant":"undefined"},{"item_id":"LIP1592274","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_motor_scout_in_motion_mr_simms_the_inventor_firing_a_volley_engraving","item_variant":"undefined"},{"item_id":"STC397189","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"tardieu_ambroise_1788_1841_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"augustin_fresnel_copy_by_boris_mestchersky_illustration_from_histoire_de_la_nation_francaise_science","item_variant":"undefined"},{"item_id":"LLM976715","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":"thomas_alva_edison_phonograph_colour_litho","item_variant":"undefined"},{"item_id":"LLE815930","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"wright_joseph_1756_93_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"richard_arkwright_engraving","item_variant":"undefined"},{"item_id":"LLM3650094","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":"john_napier_of_merchiston_inventor_of_the_logarithms_engraving","item_variant":"undefined"},{"item_id":"UIG3479951","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"jacob_brett_s_electric_printing_telegraph_patented_1845_1845","item_variant":"undefined"},{"item_id":"UIG681486","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"thomas_edison_josephus_daniels_photo","item_variant":"undefined"},{"item_id":"LLM976710","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":"samuel_finley_breese_morse_electric_telegraph_colour_litho","item_variant":"undefined"},{"item_id":"LLM976711","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":"m_santos_dumont_air_ship_colour_litho","item_variant":"undefined"},{"item_id":"LIP1594141","item_category":"photo","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":"daguerre_the_inventor_of_daguerreotype_engraving","item_variant":"undefined"},{"item_id":"XRA1663115","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"the_french_astronaut_audoin_dollfuss_in_his_gondola_in_france_april_23_1959_b_w_photo","item_variant":"undefined"},{"item_id":"LLM2813760","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_demologos_or_fulton_the_first_the_first_steam_vessel_of_war_in_the_world_engraving","item_variant":"undefined"},{"item_id":"XRH1715853","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"projection_of_a_microfilm_during_1870_war_engraving","item_variant":"undefined"},{"item_id":"XRH1714041","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"etienne_jules_marey_1830_1904_french_psyhiologist_inventor_of_the_chronophotograph","item_variant":"undefined"},{"item_id":"PVD1694724","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"bain_george_grantham_bain_news_service_1865_1944","item_category5":"not_balown","item_list_name":"search_results","item_name":"italian_physicist_guglielmo_marconi_1874_1937_inventor_of_wireless_radio_nobel_prize_in1909_c_1920","item_variant":"undefined"},{"item_id":"UIG1577597","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"james_watt_1860","item_variant":"undefined"},{"item_id":"LLM3655992","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":"william_martin_engraving","item_variant":"undefined"},{"item_id":"GIA4787446","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_18th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"andre_jacques_garnerin_s_first_parachute_tried_by_himself_at_the_parc_de_mousseaux_october_22_1797_f","item_variant":"undefined"},{"item_id":"EVB2079184","item_category":"illustration","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"edward_l_doheny","item_variant":"undefined"},{"item_id":"XJL211204","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"american_school_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"john_ericsson_1806_1862_in_the_scientific_american_5th_april_1862_engraving","item_variant":"undefined"},{"item_id":"LLM976716","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":"lord_kelvin_patent_standard_compass_colour_litho","item_variant":"undefined"},{"item_id":"LLM976723","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":"sir_hiram_maxim_maxim_gun_colour_litho","item_variant":"undefined"},{"item_id":"LAL957324","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"john_logie_baird_invented_a_cotton_undersock_for_keeping_feet_dry_colour_litho","item_variant":"undefined"},{"item_id":"LAL957642","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"alexander_was_taught_by_his_stern_grandfather_and_became_interested_in_speech_colour_litho","item_variant":"undefined"},{"item_id":"LLE817390","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_photographer_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"adolphus_tagnon_inventor_of_selfdriving_motors_b_w_photo","item_variant":"undefined"},{"item_id":"LAL304214","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"jackson_peter_1922_2003","item_category5":"not_balown","item_list_name":"search_results","item_name":"when_they_were_young_marconi_inventor_of_wireless","item_variant":"undefined"},{"item_id":"ILN124594","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"dr_barnes_wallis_1887_1979_from_the_illustrated_london_news_9th_december_1967_b_w_photo","item_variant":"undefined"},{"item_id":"LLM976709","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":"sir_james_dewar_liquid_air_colour_litho","item_variant":"undefined"},{"item_id":"LLM976712","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":"mccormick_reaping_machine_colour_litho","item_variant":"undefined"},{"item_id":"LLM976718","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":"mr_louis_brennan_cb_mono_rail_colour_litho","item_variant":"undefined"},{"item_id":"LLM976719","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":"professor_finsen_finsen_lamp_colour_litho","item_variant":"undefined"},{"item_id":"LAL957592","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"edison_tried_3_000_different_ideas_before_perfecting_the_light_bulb_colour_litho","item_variant":"undefined"},{"item_id":"LIP1627022","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_photographer_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_late_mr_james_nasmyth_engineer_inventor_of_the_steam_hammer_b_w_photo","item_variant":"undefined"},{"item_id":"LLM2813752","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_first_telegraphic_instrument_as_exhibited_in_1837_by_morse_engraving","item_variant":"undefined"},{"item_id":"XJF115802","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"kay_william_fl_1795","item_category5":"balown","item_list_name":"search_results","item_name":"john_anderson_1726_96_pub_in_1793_engraving_b_w_photo","item_variant":"undefined"},{"item_id":"XRA1656044","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"lepine_invention_contest_may_12_1951_b_w_photo","item_variant":"undefined"},{"item_id":"EVB2927277","item_category":"photo","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"lee_deforest_1923","item_variant":"undefined"},{"item_id":"LAL289437","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"english_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"under_pressure_wiley_post_the_one_eyed_pioneer_of_flight_1974_gouache_on_paper","item_variant":"undefined"},{"item_id":"GEG1779920","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"luigi_palmieri","item_variant":"undefined"},{"item_id":"LLM2802543","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":"thomas_alva_edison_chromolitho","item_variant":"undefined"},{"item_id":"LLM976717","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":"evang_torricelli_barometer_colour_litho","item_variant":"undefined"},{"item_id":"LLM976721","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":"robert_stephenson_britannia_tubular_bridge_colour_litho","item_variant":"undefined"},{"item_id":"LLM976722","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":"professor_charles_hydrogen_gas_balloon_colour_litho","item_variant":"undefined"},{"item_id":"LLM976724","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":"george_stephenson_first_locomotive_engine_colour_litho","item_variant":"undefined"},{"item_id":"LLM3099637","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_photographer_19th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"an_otto_dicycle_b_w_photo","item_variant":"undefined"},{"item_id":"LLM2813741","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_novelty_locomotive_built_by_ericsson_to_compete_with_stephenson_s_rocket_1829_engraving","item_variant":"undefined"}]}}

{"event":"custom_event","event_name":"view_search_result","event_category":"browse_catalog","keyword":"kw:inventor","search_type":"standard","search_bridgeman_artists":"false","search_mode":"automatic","search_zero_result":"false","search_results":3951,"search_results_page_number":10}