{"slug":"william-helburn","artist_id":"c7038459-a272-4440-b4d3-60cf0aca9fbd","canonical_slug":"william-helburn","name":"William Helburn","built_at":"2026-11-01","categories":[{"bucket":"Other","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":2020},{"bucket":"Prints & Editions","lots_n":4,"sold_n":3,"median_price_usd_minor":875000,"record_price_usd_minor":2000000,"record_basis":"premium","priced_lots_hammer_only":1,"priced_lots_unverified":0,"sell_through_pct":75.0,"last_sale_date":"2023-10-20","first_sale_year":2016},{"bucket":"Photography","lots_n":13,"sold_n":9,"median_price_usd_minor":357000,"record_price_usd_minor":750000,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":0,"sell_through_pct":69.2,"last_sale_date":"2025-04-02","first_sale_year":2020}],"sizes":[{"bucket":"Photography","size_bucket":"medium","lots_n":7,"sold_n":5,"median_price_usd_minor":357000,"p25_price_usd_minor":331500,"p75_price_usd_minor":750000,"record_price_usd_minor":750000,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":0,"last_sale_date":"2025-02-19"}],"notable":[{"bucket":"Photography","year":"2022","total_price_usd":750000,"priced_basis":"premium"},{"bucket":"Photography","year":"2022","total_price_usd":750000,"priced_basis":"premium"},{"bucket":"Prints & Editions","year":"2016","total_price_usd":2000000,"priced_basis":"premium"},{"bucket":"Prints & Editions","year":"2016","total_price_usd":875000,"priced_basis":"premium"}],"last_sold":{"year":"2022","total_price_usd":750000,"priced_basis":"premium"},"upcoming_count":0,"content_modified":"2026-11-01","value_block_hash":"31c11c090aef8bc0ef0b8fb5a3d85694ed71b222"}