{"event":"ecommerce_event","event_name":"view_item","event_category":"browse_catalog","ecommerce":{"items":[{"item_id":"XLA3766785","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"halley_s_comet_in_1066_colour_litho","item_variant":"undefined"},{"item_id":"XIR154683","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"french_school_18th_century","item_category5":"balown","item_list_name":"search_results","item_name":"halley_s_comet_observed_in_1759_by_cassini_iii_engraving","item_variant":"undefined"},{"item_id":"STC306860","item_category":"object","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_great_daylight_comet_from_the_year_1910_a_record_of_notable_achievements_and_events_1910_colour_","item_variant":"undefined"},{"item_id":"PIX4569897","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"jerry_lodriguss","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_comete_1986_halley_s_comet_march_21_1986_march_21_1986","item_variant":"undefined"},{"item_id":"LAL453420","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"green_harry_b_1920","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet","item_variant":"undefined"},{"item_id":"LLM2782432","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":"parisians_watching_halley_s_comet_from_the_city_s_rooftops_colour_litho","item_variant":"undefined"},{"item_id":"TRK5482228","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet_named_after_the_british_astronomer_edmond_edmund_halley_1656_1742_which_appeared_seve","item_variant":"undefined"},{"item_id":"PIX4569994","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_comete_halley_s_comet_march_12_1986_halley_comet_march_12_1986","item_variant":"undefined"},{"item_id":"XLA3766596","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"edmund_halley","item_variant":"undefined"},{"item_id":"UIG3525121","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_photographer_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"1910_photograph_of_halley_s_comet","item_variant":"undefined"},{"item_id":"EPL6784077","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet","item_variant":"undefined"},{"item_id":"EPL6784257","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet","item_variant":"undefined"},{"item_id":"EPL6803616","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"nygaard_axel_1877_1953","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet","item_variant":"undefined"},{"item_id":"UIG5307506","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet","item_variant":"undefined"},{"item_id":"EPL7054092","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet","item_variant":"undefined"},{"item_id":"EPL6784081","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet","item_variant":"undefined"},{"item_id":"UIG5307504","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet","item_variant":"undefined"},{"item_id":"UIG5307500","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet","item_variant":"undefined"},{"item_id":"EPL6780914","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"wills_w_d_h_o_fl_1786_1986","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet","item_variant":"undefined"},{"item_id":"XIR159137","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"english_school_11th_century","item_category5":"balown","item_list_name":"search_results","item_name":"halley_s_comet_and_harold_receiving_bad_news_bayeux_tapestry_wool_embroidery_on_linen","item_variant":"undefined"},{"item_id":"LLM3651640","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":"halley_s_comet_chromolitho","item_variant":"undefined"},{"item_id":"SZT3022262","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"astronomers_during_the_stargazing_1910_b_w_photo","item_variant":"undefined"},{"item_id":"UIG5307501","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet","item_variant":"undefined"},{"item_id":"LAL278481","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category4":"green_harry_b_1920","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet_gouache_on_paper","item_variant":"undefined"},{"item_id":"XCC2971948","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"posada_jose_guadalupe_1851_1913","item_category5":"balown","item_list_name":"search_results","item_name":"the_great_halley_s_comet_1899_published_1910_double_sided_relief_engraving_on_zinc_on_paper","item_variant":"undefined"},{"item_id":"UIS5096238","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"comets_c_1860","item_variant":"undefined"},{"item_id":"PNH350088","item_category":"illustration","item_category2":"in_copyright","item_category3":"standard","item_category4":"arnold_graham_b_1932","item_category5":"not_balown","item_list_name":"search_results","item_name":"comet_halley_in_clouds_1997_oil_on_board","item_variant":"undefined"},{"item_id":"UIS5096089","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_description_of_the_comet_of_1531_16th_century","item_variant":"undefined"},{"item_id":"UIS5096303","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"comets_c_1860","item_variant":"undefined"},{"item_id":"UIS5096342","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"alarming_comet_of_1835_10_august_1835","item_variant":"undefined"},{"item_id":"UIS5090362","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"comets_c_1860","item_variant":"undefined"},{"item_id":"XLA3766941","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"halley_s_comet_66_ad_over_jerusalem","item_variant":"undefined"},{"item_id":"PIX4569940","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet_halley_s_comet_halley_s_comet_seen_on_april_10_1986_in_peru_halliy_s_comet_on_april_1","item_variant":"undefined"},{"item_id":"UIS5090158","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"alarming_comet_of_1835_10_august_1835","item_variant":"undefined"},{"item_id":"UIS5096099","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"description_of_the_comet_of_1531_16th_century","item_variant":"undefined"},{"item_id":"EPL6813010","item_category":"illustration","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"jean_sylvain_bailly","item_variant":"undefined"},{"item_id":"EPL6813009","item_category":"illustration","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"jean_sylvain_bailly","item_variant":"undefined"},{"item_id":"PIX4570005","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"jerry_lodriguss","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet_halley_s_comet_halley_s_comet_seen_in_false_colours_on_april_10_1986_in_peru_halliy_s","item_variant":"undefined"},{"item_id":"UIS5622791","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"peter_bienewitz_apian_mathematician_astronomer_and_geographer_c_1540","item_variant":"undefined"},{"item_id":"EVB2927017","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet_1910","item_variant":"undefined"},{"item_id":"PIX4569993","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_comete_halley_s_comet_on_december_9_1985_halley_comete_december_9_1985","item_variant":"undefined"},{"item_id":"EPL6813011","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"jean_sylvain_bailly","item_variant":"undefined"},{"item_id":"EPL6813023","item_category":"illustration","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"jean_sylvain_bailly","item_variant":"undefined"},{"item_id":"EPL6813026","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"duplessis_bertaux_jean_1747_1819_after","item_category5":"not_balown","item_list_name":"search_results","item_name":"jean_sylvain_bailly","item_variant":"undefined"},{"item_id":"XLA3766814","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"halley_s_comet_66_ad_over_jerusalem","item_variant":"undefined"},{"item_id":"PIX4606978","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_giotto_probe_view_of_the_giotto_probe_in_preparation_at_intespace_toulouse_before_its_launch_by_","item_variant":"undefined"},{"item_id":"PIX4606988","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_giotto_probe_view_of_the_giotto_probe_in_preparation_at_intespace_toulouse_before_its_launch_by_","item_variant":"undefined"},{"item_id":"PIX4607008","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"giotto_probe_meets_halley_s_comet_artist_s_view","item_variant":"undefined"},{"item_id":"LLM3642940","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"sager_xavier_1870_1930","item_category5":"not_balown","item_list_name":"search_results","item_name":"la_comete_de_halley_colour_litho","item_variant":"undefined"},{"item_id":"PIX4607001","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"dixon_don_b_1951","item_category5":"not_balown","item_list_name":"search_results","item_name":"giotto_probe_meets_halley_s_comet_giotto_probe_meets_halley_s_comet_artist_s_view","item_variant":"undefined"},{"item_id":"PIX4569911","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"jerry_lodriguss","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_comete_1985_halley_s_comet_december_5_1985_december_5_198","item_variant":"undefined"},{"item_id":"PIX4569890","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"jerry_lodriguss","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_comete_1986_halley_s_comet_january_5_1986_january_5_198","item_variant":"undefined"},{"item_id":"EPL6813036","item_category":"illustration","item_category2":"undetermined_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"jean_sylvain_bailly","item_variant":"undefined"},{"item_id":"SZT3024043","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"observatory_in_treptow_1910_b_w_photo","item_variant":"undefined"},{"item_id":"PIX4569874","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"jerry_lodriguss","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_comete_1985_halley_s_comet_december_2_1985_december_2_198","item_variant":"undefined"},{"item_id":"UIG5307490","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"medal_commemorating_the_reappearance_of_halley_s_comet_in_1910","item_variant":"undefined"},{"item_id":"GIA4759234","item_category":"illustration","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"unknown_artist_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"scientist_and_astronomer_jean_mascart_observing_halley_s_comet_on_may_17_1910_at_3_a_m_from_the_peak","item_variant":"undefined"},{"item_id":"PIX4569951","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"core_of_halley_s_comet_seen_by_the_giotto_probe_halley_s_comet_nucleus_seen_by_giotto_spacecraft_14_","item_variant":"undefined"},{"item_id":"PIX4569913","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category4":"jerry_lodriguss","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_comete_halley_s_comet_april_9_1986_april_9_1986","item_variant":"undefined"},{"item_id":"FLO4657001","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"fashionable_ladies_and_gentlemen_playing_the_card_game_comet_named_for_the_1758_visit_of_halley_s_co","item_variant":"undefined"},{"item_id":"PIX4569954","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"comete_of_halley_halley_s_comet_view_on_april_10_1986","item_variant":"undefined"},{"item_id":"PIX4569921","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"comete_de_halley_halley_s_comet_comete_de_halley_seen_in_1986_at_the_observatory_of_la_silla_chile_t","item_variant":"undefined"},{"item_id":"UIG5307503","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"medal_commemorating_the_reappearance_of_halley_s_comet_in_1910","item_variant":"undefined"},{"item_id":"LLM8624879","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":"halley_s_comet_of_1835_engraving","item_variant":"undefined"},{"item_id":"XRH1705394","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"edmund_halley_1656_1742_english_astronomer_who_calculated_the_orbit_of_the_comet_now_called_halley_s","item_variant":"undefined"},{"item_id":"EPL6784279","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet_1546_7","item_variant":"undefined"},{"item_id":"UIS5096713","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet_october_1835","item_variant":"undefined"},{"item_id":"GIA4694436","item_category":"illustration","item_category2":"undetermined_copyright","item_category3":"standard","item_category4":"french_school_20th_century","item_category5":"not_balown","item_list_name":"search_results","item_name":"advertising_of_the_department_store_au_bon_marche_on_the_occasion_of_the_passage_of_halley_s_comet_i","item_variant":"undefined"},{"item_id":"UIG5311384","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"the_great_comet_of_1456_halley_s_comet_pope_calixtus_iii_excommunicated_this_comet_16th_century","item_variant":"undefined"},{"item_id":"XEE4176295","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"anonymous","item_category5":"balown","item_list_name":"search_results","item_name":"halley_s_comet_the_roofs_of_paris_transform_into_an_observatory_engraving_one_of_the_newspaper_le_pe","item_variant":"undefined"},{"item_id":"UIG532168","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"chart_of_solar_system_with_path_of_halley_s_comet_in_1835_and_positions_of_some_of_the_asteroids_pla","item_variant":"undefined"},{"item_id":"LLM3645402","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":"comete_de_halley_1835_engraving","item_variant":"undefined"},{"item_id":"PIX4569939","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet_halley_s_comet_halley_s_comet_seen_on_april_10_1986_in_peru_glowing_at_6th_magnitude_","item_variant":"undefined"},{"item_id":"LIP2772743","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":"comets_and_cometary_influences_engraving","item_variant":"undefined"},{"item_id":"DGA2582672","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"sheet_commemorating_passage_of_halley_s_comet_1986_depicting_portrait_of_edmund_halley_1656_1742_orb","item_variant":"undefined"},{"item_id":"MMM7341531","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"chalon_john_james_1778_1854","item_category5":"not_balown","item_list_name":"search_results","item_name":"looking_at_halley_s_comet_1835_watercolour","item_variant":"undefined"},{"item_id":"EPL7036407","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"hill_leonard_raven_1887_1942","item_category5":"not_balown","item_list_name":"search_results","item_name":"cartoon_the_great_amateur_halley_s_comet","item_variant":"undefined"},{"item_id":"LLM3091225","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":"the_end_of_the_world_1910_litho","item_variant":"undefined"},{"item_id":"XEE4158445","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"unknown_artist_19th_century","item_category5":"balown","item_list_name":"search_results","item_name":"halley_s_comet_1835_engraving_around_1867","item_variant":"undefined"},{"item_id":"PIX4569906","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet_and_milky_way_april_6_1986_april_6_198","item_variant":"undefined"},{"item_id":"PIX4569904","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_comet_et_voie_lactee_halley_s_comet_and_milky_way_march_22_1986_march_22_1986","item_variant":"undefined"},{"item_id":"PIX4569931","item_category":"photo","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_comet_halley_s_comet_halley_s_comet_seen_in_april_1986_in_the_scorpio_region_halliy_s_comet_o","item_variant":"undefined"},{"item_id":"UIS5096707","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet_september_and_october_1835","item_variant":"undefined"},{"item_id":"UIS5096717","item_category":"illustration","item_category2":"no_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"halley_s_comet_29_october_1835","item_variant":"undefined"},{"item_id":"KWE189094","item_category":"object","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":"edmond_halley_1656_1742_from_gallery_of_portraits_published_in_1833_engraving","item_variant":"undefined"},{"item_id":"DGA2581964","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"not_balown","item_list_name":"search_results","item_name":"postage_stamps_honoring_space_research_on_left_spaceship_flying_over_phobos_satellite_of_mars_1978_o","item_variant":"undefined"},{"item_id":"LLH982192","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":"portrait_of_edmond_halley_engraving","item_variant":"undefined"},{"item_id":"STC375610","item_category":"photo","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"casasola_agustin_victor_1874_1938","item_category5":"not_balown","item_list_name":"search_results","item_name":"a_street_crowd_in_mexico_city_observing_halley_s_comet_april_1910_b_w_photo","item_variant":"undefined"},{"item_id":"CHT184906","item_category":"object","item_category2":"out_of_copyright","item_category3":"standard","item_category4":"grandville_jean_ignace_isidore_gerard_1803_47","item_category5":"not_balown","item_list_name":"search_results","item_name":"peregrination_of_a_comet_possibly_a_souvenir_of_halley_s_comet_in_1834_1849_colour_litho","item_variant":"undefined"},{"item_id":"XJF884418","item_category":"illustration","item_category2":"out_of_copyright","item_category3":"standard","item_category5":"balown","item_list_name":"search_results","item_name":"edmond_halley_1656_1742_engraving","item_variant":"undefined"}]}}

{"event":"custom_event","event_name":"view_search_result","event_category":"browse_catalog","keyword":"halley's comet","search_type":"standard","search_bridgeman_artists":"false","search_mode":"automatic","search_zero_result":"false","search_results":113,"search_results_page_number":1}