Vintage Jeep Porcelain Sign. This vintage porcelain sign features Jeep vehicles with the words “Sales Service” and “Willy’s” in bold letters. The sign is made in the United States and measures 11 3/4 inches in size. It is a great addition to any gas and oil or advertising collectibles collection. This sign will make your mancave, collection, shop, or garage really stick out. It is your chance to own a piece of Jeep advertising. I have a lot of other signs you might like. Mobil Gas, Harley Motorcycles, Chevrolet, Ford, Coca Cola, Snoopy, Etc! Jeep Advertising for 4 wheel drive. 11 3/4 inches in diameter. Vibrant colors and excellent porcelain.