2026Large oil on canvas Expressionist figural landscape, signed John Opper '56 onSee Winning BidDelray Beach, FLBill Hood & Sons Art & Antique Auctions4.7(799)
2024John Opper style of American Abstract acrylic on canvas on c/bSee Winning BidT'bilisi, FLVintage Art Finder Gallery4.3(4)
2024JOHN OPPER (New York/North Carolina/Illinois, 1908-1994), Provincetown landscape with "Wharf"See Winning BidEast Dennis, MAEldred's4.7(538)
2024John Opper, Ninth Avenue El (New York City)See Winning BidChicago, ILToomey & Co. Auctioneers4.7(413)
2023John Opper (1908-1994) 30/79 Acrylic on canvas 5See Winning BidDallas, TXHeritage Auctions4.2(612)
2022John Opper (1908-2008) Burgundy & Blue, 1962 OilSee Winning BidDallas, TXHeritage Auctions4.2(612)
2022John Opper (1908-2008) Blue and Black, 1962 Oil See Winning BidDallas, TXHeritage Auctions4.2(612)
2022John Opper (1908-2008) Blue and Black, 1962 Oil See Winning BidDallas, TXHeritage Auctions4.2(612)
2021Amazing John Opper 1976 Oil CanvasSee Winning BidRiverview, FLAmazing Collectible Galleries4.6(189)
2018John Opper (American, 1908 - 1994) - Oil on CanvasSee Winning BidNew York, NYHutter Auctions NYC4.5(116)