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toile","usd_minor":186816,"basis":"premium","house_name":"Ader","sale_month":"2022-10","lot_id":"09195289-20bc-47d2-adc8-0b1b361d29d7"},{"rank":10,"title":"À travers les claires vitres du matin","work_year":"1975","medium":"Huile sur toile","usd_minor":186816,"basis":"premium","house_name":"Ader","sale_month":"2022-10","lot_id":"eb0d804d-b2c3-4899-a70a-9fd7b2a30c4e"}],"editions":[]},"paragraph":"As of 3 November 2026, OpeningBid has recorded 59 auction results for Marc Janson at 12 houses since 2004. Over the last 24 months the median price was $669 including buyer’s premium (middle half $340–$987, n=14). The auction record is $3,507 for Dans Ecbatane (2022, Ader). Source: OpeningBid, an independent auction-results database.","title":"Marc Janson value: auction records & prices (updated Nov 2026)"}}