{"slug":"bertram-park","artist_id":"eccdd878-d6f3-4229-b604-ea643f20d3d5","canonical_slug":"bertram-park","name":"Bertram Park","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,"last_sale_date":null,"first_sale_year":2017},{"bucket":"Works on Paper","lots_n":1,"sold_n":1,"median_price_usd_minor":3876,"record_price_usd_minor":3876,"record_basis":"premium","priced_lots_hammer_only":0,"priced_lots_unverified":0,"sell_through_pct":null,"last_sale_date":"2025-12-08","first_sale_year":2025},{"bucket":"Prints & 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prints","usd_minor":20378,"basis":"premium","house_name":"Chiswick Auctions","sale_month":"2025-01","lot_id":"790c68b7-fe11-4511-98ec-187b18558264"}]},"paragraph":"As of 2 November 2026, OpeningBid has recorded 13 auction results for Bertram Park at 3 houses since 2017. Over the last 24 months the median price was $204 including buyer’s premium (middle half $163–$221, n=7). The auction record is $865 for Portrait féminin cubiste (2018, Ader). Source: OpeningBid, an independent auction-results database.","title":"Bertram Park value: auction records & prices (updated Nov 2026)"}}