Vintage Large Sinclair Horizontal Porcelain Sign

Updated August 27, 2026

Vintage large size SINCLAIR horizontal, self-framed sign. This is a one-piece sign in green, red, black and white colors. The black coming off the white letters is also on a slight ridge and not smooth as the rest of the background to make this sign really stand out in overall detail. Sign is in very good condition with few flaws. There are mounting holes on the edges of all four sides. This was a one-sided sign but the back side inset of the sign has been painted red with “ROCKY MOUNTAIN SEED CO.” in white letters. A great sign to put on any wall. Measures 96.25” long, 14.25” tall and 1.5” deep. ** SHIPPING DISCLAIMER: Due to the size and weight of this item, we are unable to provide in-house shipping. If you require shipping and cannot pick up the item in person, please arrange shipping with a third-party provider before placing a bid. Need recommendations for shippers? We’re happy to help – just reach out to us at [email protected]. View our full catalog of quality items up for auction at: PotOfGoldAuctions.com. Tag Words: Oil, Gas, Advertising, Metal, Porcelain, Petroliana, Vintage, Automobile, Truck, Car ZC624 AE

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