Original RPM Motor Oil Double Sided 28 Porcelain Sign. Condition as it came out of storage, I did not even clean it, and it will clean up fantastic, I wanted you to see it in it's as is condition. 90% of discoloration will clean up with a mild washing.You won't find many in this condition. Original RPM Motor Oil Double Sided Porcelain Sign 28" is in sale since Wednesday, September 22, 2021. This item is in the category "Collectibles\Advertising\Gas & Oil\Merchandise & Memorabilia\Signs". The seller is "david8630" and is located in Melbourne, Florida. This item can be shipped to United States.