Vintage Porcelain Mobil Regular Gas Motor Oil Company Sign > Antique Old 9355. We have up for your consideration a vintage porcelain Mobil Regular Gas sign. This sign would look great in your mancave, get creative! The sign is 13 3/4″ x 12″ wide. Good condition for its age without any dents. It has moderate to severe scratches and areas of staining, see pictures. See description above for further info on the condition. Track Page Views With. Auctiva’s FREE Counter. The item “Vintage Porcelain Mobil Regular Gas Motor Oil Company Sign Antique Old 9355″ is in sale since Sunday, June 28, 2015. This item is in the category “Collectibles\Advertising\Gas & Oil\Gas & Oil Companies\Mobil”. The seller is “*miliki*” and is located in Red Oak, Iowa. This item can be shipped worldwide.