This is a vintage 1948 crankcase Standard Oil Zerolene porcelain metal part sign measuring 12" x 18". The sign features multi-color advertising and is an original piece from the United States. It's perfect for collectors of advertising or merchandise and memorabilia. The sign is in excellent working order and has not been modified from its original state. This piece of history is a must-have for any collector or enthusiast. Don't miss out on the opportunity to own this unique and rare item.