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Pencils","work_year":"1979","medium":"Pencil","usd_minor":330200,"basis":"premium","house_name":"Los Angeles Modern Auctions","sale_month":"2025-07","lot_id":"52d0cd64-cbfc-449f-9c76-ee9c44f890cf"}],"editions":[]},"paragraph":"As of 3 November 2026, OpeningBid has recorded 33 auction results for Robert Cumming at 8 houses since 1999. Over the last 24 months the median price was $2,286 including buyer’s premium (middle half $1,688–$3,958, n=18). The auction record is $16,380 for Line Separates from Shape (2022, Sotheby's). Source: OpeningBid, an independent auction-results database.","title":"Robert Cumming value: auction records & prices (updated Nov 2026)"}}