{"slug":"bertram-hartman","artist_id":"13d5cc61-cb0f-492f-9aea-86ec13343037","canonical_slug":"bertram-hartman","name":"Bertram Hartman","built_at":"2026-11-02","categories":[{"bucket":"Other","lots_n":3,"sold_n":3,"median_price_usd_minor":36900,"record_price_usd_minor":50000,"record_basis":"hammer","priced_lots_hammer_only":2,"priced_lots_unverified":0,"sell_through_pct":null,"last_sale_date":"2026-03-11","first_sale_year":2025},{"bucket":"Prints & Editions","lots_n":1,"sold_n":0,"median_price_usd_minor":null,"record_price_usd_minor":null,"record_basis":null,"priced_lots_hammer_only":0,"priced_lots_unverified":0,"sell_through_pct":0.0,"last_sale_date":null,"first_sale_year":2002},{"bucket":"Paintings","lots_n":17,"sold_n":12,"median_price_usd_minor":106250,"record_price_usd_minor":375000,"record_basis":"unverified","priced_lots_hammer_only":0,"priced_lots_unverified":3,"sell_through_pct":70.6,"last_sale_date":"2023-04-19","first_sale_year":2004},{"bucket":"Works on Paper","lots_n":27,"sold_n":20,"median_price_usd_minor":43900,"record_price_usd_minor":1115644,"record_basis":"premium","priced_lots_hammer_only":4,"priced_lots_unverified":1,"sell_through_pct":74.1,"last_sale_date":"2026-09-25","first_sale_year":1989}],"sizes":[{"bucket":"Paintings","size_bucket":"small","lots_n":12,"sold_n":8,"median_price_usd_minor":106250,"p25_price_usd_minor":52875,"p75_price_usd_minor":162250,"record_price_usd_minor":286000,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":2,"last_sale_date":"2023-04-19"},{"bucket":"Works on Paper","size_bucket":"medium","lots_n":20,"sold_n":14,"median_price_usd_minor":24450,"p25_price_usd_minor":17300,"p75_price_usd_minor":61950,"record_price_usd_minor":175000,"record_basis":"premium","priced_lots_hammer_only":4,"priced_lots_unverified":1,"last_sale_date":"2026-09-25"}],"notable":[{"bucket":"Paintings","year":"2020","total_price_usd":375000,"priced_basis":"unverified"},{"bucket":"Paintings","year":"2007","total_price_usd":361572,"priced_basis":"premium"},{"bucket":"Works on Paper","year":"2006","total_price_usd":1115644,"priced_basis":"premium"},{"bucket":"Works on Paper","year":"2018","total_price_usd":286000,"priced_basis":"premium"}],"last_sold":{"year":"2024","total_price_usd":175000,"priced_basis":"premium"},"upcoming_count":0,"content_modified":"2026-10-22","value_block_hash":"b92c211ecce4d6f2a86c1990379d1416e869aba8"}