{"slug":"william-thon","artist_id":"4d4d8a2f-e0ca-4185-b4b9-33906f85da5f","canonical_slug":"william-thon","name":"William Thon","built_at":"2026-11-03","categories":[{"bucket":"Works on Paper","lots_n":16,"sold_n":16,"median_price_usd_minor":136500,"record_price_usd_minor":375000,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":0,"sell_through_pct":null,"last_sale_date":"2026-09-17","first_sale_year":2005},{"bucket":"Other","lots_n":2,"sold_n":1,"median_price_usd_minor":45000,"record_price_usd_minor":45000,"record_basis":"hammer","priced_lots_hammer_only":1,"priced_lots_unverified":0,"sell_through_pct":50,"last_sale_date":"2014-06-05","first_sale_year":2011},{"bucket":"Paintings","lots_n":14,"sold_n":11,"median_price_usd_minor":137500,"record_price_usd_minor":1250000,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":1,"sell_through_pct":78.6,"last_sale_date":"2026-05-03","first_sale_year":1995},{"bucket":"Prints & Editions","lots_n":3,"sold_n":1,"median_price_usd_minor":11500,"record_price_usd_minor":11500,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":0,"sell_through_pct":33.3,"last_sale_date":"1996-02-08","first_sale_year":1996}],"sizes":[{"bucket":"Works on Paper","size_bucket":"medium","lots_n":13,"sold_n":13,"median_price_usd_minor":143000,"p25_price_usd_minor":76400,"p75_price_usd_minor":169000,"record_price_usd_minor":375000,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":0,"last_sale_date":"2026-09-17"},{"bucket":"Paintings","size_bucket":"medium","lots_n":12,"sold_n":9,"median_price_usd_minor":137500,"p25_price_usd_minor":65200,"p75_price_usd_minor":375000,"record_price_usd_minor":1250000,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":1,"last_sale_date":"2026-05-03"}],"notable":[{"bucket":"Paintings","year":"2022","total_price_usd":1250000,"priced_basis":"premium"},{"bucket":"Paintings","year":"2024","total_price_usd":593700,"priced_basis":"premium"},{"bucket":"Prints & Editions","year":"1996","total_price_usd":11500,"priced_basis":"premium"},{"bucket":"Works on Paper","year":"2021","total_price_usd":375000,"priced_basis":"premium"},{"bucket":"Works on Paper","year":"2018","total_price_usd":325000,"priced_basis":"premium"}],"last_sold":{"year":"2026","total_price_usd":145200,"priced_basis":"premium"},"upcoming_count":0,"content_modified":"2026-11-02","value_block_hash":"ac5a6d2786a745fe3741bbca9dd33cfa0ecfcdc2","value":{"slug":"william-thon","name":"William Thon","as_of":"2026-11-03","newest_result_date":"2026-09-17","results_total":29,"houses_total":6,"first_year":1995,"median_24m":{"usd_minor":169000,"p25_usd_minor":145200,"p75_usd_minor":375000,"n":5,"basis":"premium"},"record":{"title":"The Waterfall","work_year":null,"usd_minor":1250000,"basis":"premium","sale_year":2022,"sale_month":"2022-11","house_name":"Grogan & Company","lot_id":"996fd224-2363-4d77-b32c-5138f6c7d6b4"},"by_medium":[{"medium":"Paintings","n":11,"median_usd_minor":137500},{"medium":"Works on paper","n":15,"median_usd_minor":130000}],"by_size":[{"band":"Medium (50-120 cm)","n":22,"median_usd_minor":128750}],"methodology_url":"https://www.openingbid.art/methodology/price-data","top10":{"originals":[{"rank":1,"title":"The Waterfall","work_year":null,"medium":"Oil on masonite","usd_minor":1250000,"basis":"premium","house_name":"Grogan & Company","sale_month":"2022-11","lot_id":"996fd224-2363-4d77-b32c-5138f6c7d6b4"},{"rank":2,"title":"The Overlook","work_year":null,"medium":"Oil on canvas","usd_minor":593700,"basis":"premium","house_name":"Grogan & Company","sale_month":"2024-11","lot_id":"8ec2da42-7388-4ca1-8c65-c9ecc8318fd8"},{"rank":3,"title":"Ship in Stormy Sea","work_year":null,"medium":"Oil on masonite","usd_minor":375000,"basis":"premium","house_name":"Grogan & Company","sale_month":"2026-05","lot_id":"2d96d2ad-14f3-4d24-88a7-c4b046053175"},{"rank":4,"title":"Winter Landscape; Forest in Winter","work_year":null,"medium":"Watercolors with gouache","usd_minor":375000,"basis":"premium","house_name":"Swann Auction Galleries","sale_month":"2021-06","lot_id":"3551cb3b-85ac-4ccb-ab03-1d1a527b0a85"},{"rank":5,"title":"Wind Song","work_year":null,"medium":"Watercolor on cream wove paper","usd_minor":325000,"basis":"premium","house_name":"Swann Auction Galleries","sale_month":"2018-06","lot_id":"3c4bd160-cd6c-4a09-911c-d273cd5eb616"},{"rank":6,"title":"Birds in the Trees, Sligo, Corner of Hadrian's Villa, November Frost, and Ruins at Albano","work_year":null,"medium":"Watercolors","usd_minor":264000,"basis":"premium","house_name":"Swann Auction Galleries","sale_month":"2013-06","lot_id":"3c7406ba-85b0-4bf6-adac-1056cd9d69f6"},{"rank":7,"title":"Maine Forest","work_year":"circa 1950","medium":"Watercolor and ink on Fabriano wove paper","usd_minor":225000,"basis":"premium","house_name":"Swann Auction Galleries","sale_month":"2024-09","lot_id":"ed382815-c1a4-473b-9401-73efaebba461"},{"rank":8,"title":"Trees (Yellow and Amber)","work_year":"2000","medium":"Watercolor and ink on Fabriano wove paper","usd_minor":169000,"basis":"premium","house_name":"Swann Auction Galleries","sale_month":"2025-03","lot_id":"95553296-3de1-477b-9ae1-b0b6b9cac813"},{"rank":9,"title":"Two watercolors","work_year":"1955","medium":"Watercolors","usd_minor":156000,"basis":"premium","house_name":"Swann Auction Galleries","sale_month":"2020-09","lot_id":"615a679a-10f8-4a76-adf4-1b676862b98e"},{"rank":10,"title":"Winter Landscape","work_year":"1960","medium":"Oil on canvas","usd_minor":150000,"basis":"premium","house_name":"Swann Auction Galleries","sale_month":"2021-06","lot_id":"14950291-b3f7-4db2-8106-409b6a5785b7"}],"editions":[]},"paragraph":"As of 3 November 2026, OpeningBid has recorded 29 auction results for William Thon at 6 houses since 1995. Over the last 24 months the median price was $1,690 including buyer’s premium (middle half $1,452–$3,750, n=5). The auction record is $12,500 for The Waterfall (2022, Grogan & Company). Source: OpeningBid, an independent auction-results database.","title":"William Thon value: auction records & prices (updated Nov 2026)"}}