Vintage Gulf Oil Porcelain Double Sided Advertisement Sign 30 Round. Listed just as foundSee photos for detail. This wonderful sign is part of a large advertising collection weve consigned, please be sure to check out our other items! We Guarantee Your Satisfaction 100%. The Old Barn at Point Clear. We also reserve the right to end all our auctions early. Thanks for your continued support and we sincerely appreciate your business in advance. The item "Vintage Gulf Oil Porcelain Double Sided Advertisement Sign 30 Round" is in sale since Tuesday, December 06, 2016. This item is in the category "Collectibles\Advertising\Gas & Oil\Merchandise & Memorabilia\Signs". The seller is "astorlive" and is located in Fairhope, Alabama. This item can be shipped to United States.