Save2 days LeftSinclair Dino sign in cast iron frameChupp Auctions & Real Estate, LLC4.6(277)Est. $50-$1,000$600(4 bids)
Save1 day LeftSinclair HC Gasoline DSP Porcelain 48" Gas Station Identification Sign with Original RingCheck the Oil Promotions, LLC4.8(601)Est. $100-$10,000$600(6 bids)
Save1 day LeftSinclair Opaline Drain and Refill SSP Porcelain SignCheck the Oil Promotions, LLC4.8(601)Est. $100-$10,000$350(3 bids)
Save1 day LeftSinclair Pipeline Crossing SSP Porcelain SignCheck the Oil Promotions, LLC4.8(601)Est. $100-$10,000$125(3 bids)
Save5 hrs LeftSinclair Credit Cards Double-Sided Porcelain Sign W/ Hanging BracketMatthews Auctions, LLC4.6(160)Est. $50-$50,000$25(1 bid)
SaveApr 02, 2026Sinclair Gasoline Porcelain Advertising SignSouthernaire Antiques & Auction4.3(15)Est. $50-$100$25
SaveApr 05, 2026Clarence Sinclair Bull (1895-1979), "The Kiss" Limited Edition Photograph, Numbered and Stamp SignedRobinhood Auctions4.7(856)Est. $945-$1,260$420
SaveApr 05, 2026Clarence Sinclair Bull (1895-1979), "The Kiss" Limited Edition Photograph, Numbered and Stamp SignedRobinhood Auctions4.7(856)Est. $712-$950$260
Save6 days LeftLarge Vintage Sinclair Aircraft Double-Sided Porcelain Enamel Advertising Sign – 48" RoundGrandview Art & Auctions4.3(3)Est. $400-$600$200
SaveBuy NowClarence Sinclair Bull (1895-1979), "The Kiss" Limited Edition Photograph, Numbered and Stamp SignedRobinhood Auctions4.7(856)$945
Save1 day Left(6) MARY NELSON SINCLAIR (B.1984) MIXED MEDIA ABSTRACTIONS IN ACRYLIC FRAMESAustin Auction Gallery4.7(1.2k)Est. $600-$1,200$400
Save7 hrs LeftClarence Sinclair Bull (1895-1979), "Susan Lenox (Her Fall and Rise)" Limited Edition Photograph,Robinhood Auctions4.7(856)Est. $945-$1,260$420
SaveBuy NowClarence Sinclair Bull (1895-1979), "Mata Hari" Limited Edition Photograph, Numbered and StampRobinhood Auctions4.7(856)$945
SaveBuy NowClarence Sinclair Bull (1895-1979), "Greta Garbo" Limited Edition Photograph, Numbered and StampRobinhood Auctions4.7(856)$945
SaveBuy NowClarence Sinclair Bull (1895-1979), "Greta Garbo" Limited Edition Photograph, Numbered and StampRobinhood Auctions4.7(856)$945
