Porcelain Vintage H-C Sinclair Gasoline double-sided 48 porcelain sign. Very nice, Both sides sustain the same amount of damage.. I mounted it to a piece of aluminum along with the neon ring and 110 transformer so the sign remains original and can be displayed with or without the neon.... The item "Vintage H-C Sinclair Gasoline double-sided 48 porcelain sign NO RESERVE" is in sale since Sunday, August 25, 2019. This item is in the category "Collectibles\Advertising\Gas & Oil\Merchandise & Memorabilia\Signs".The seller is "flyinganvil55" and is located in Frankfort, Ohio. This item can't be shipped, the buyer must pick up the item.