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Over the last 24 months the median price was $1,746 including buyer’s premium (middle half $1,537–$4,661, n=8). The auction record is $674,126 for LES PEINTRES-GRAVEURS (CF. JOHNSON PP. 127-155) (2019, Sotheby's). Source: OpeningBid, an independent auction-results database.","title":"Portfolio value: auction records & prices (updated Nov 2026)"}}