{"slug":"r-a-william-roberts","artist_id":"323569c7-6e3a-4baa-b91b-1dd7e40de2fe","canonical_slug":"r-a-william-roberts","name":"William Roberts","built_at":"2026-11-02","categories":[{"bucket":"Works on Paper","lots_n":28,"sold_n":26,"median_price_usd_minor":871099,"record_price_usd_minor":7922590,"record_basis":"hammer","priced_lots_hammer_only":2,"priced_lots_unverified":1,"sell_through_pct":92.9,"last_sale_date":"2026-01-13","first_sale_year":1995},{"bucket":"Other","lots_n":3,"sold_n":1,"median_price_usd_minor":171050,"record_price_usd_minor":171050,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":0,"sell_through_pct":33.3,"last_sale_date":"2026-09-22","first_sale_year":2026},{"bucket":"Paintings","lots_n":4,"sold_n":3,"median_price_usd_minor":95828,"record_price_usd_minor":15516673,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":0,"sell_through_pct":75.0,"last_sale_date":"2017-01-25","first_sale_year":2003},{"bucket":"Prints & Editions","lots_n":4,"sold_n":4,"median_price_usd_minor":87958,"record_price_usd_minor":282321,"record_basis":"hammer","priced_lots_hammer_only":1,"priced_lots_unverified":1,"sell_through_pct":null,"last_sale_date":"2020-09-17","first_sale_year":2002}],"sizes":[{"bucket":"Works on Paper","size_bucket":"small","lots_n":25,"sold_n":23,"median_price_usd_minor":836255,"p25_price_usd_minor":428642,"p75_price_usd_minor":1494700,"record_price_usd_minor":7922590,"record_basis":"hammer","priced_lots_hammer_only":2,"priced_lots_unverified":1,"last_sale_date":"2026-01-13"}],"notable":[{"bucket":"Paintings","year":"2003","total_price_usd":15516673,"priced_basis":"premium"},{"bucket":"Paintings","year":"2017","total_price_usd":95828,"priced_basis":"premium"},{"bucket":"Prints & Editions","year":"2020","total_price_usd":282321,"priced_basis":"hammer"},{"bucket":"Prints & Editions","year":"2002","total_price_usd":118812,"priced_basis":"premium"},{"bucket":"Works on Paper","year":"2013","total_price_usd":7922590,"priced_basis":"hammer"},{"bucket":"Works on Paper","year":"1999","total_price_usd":6611767,"priced_basis":"premium"}],"last_sold":{"year":"2026","total_price_usd":1238409,"priced_basis":"hammer"},"upcoming_count":0,"content_modified":"2026-09-22","value_block_hash":"8839d493b9ee145618adeafcac767cf0dae82aa1"}