Johnson 48 Porcelain Sign - Original gas & oil sign - porcelain sign. 48 in double sided extremely hard to find and scares Johnson gasoline 48 inch Porcelain sign. This sign has been touched up on one side and the other side left completely alone please feel free to p. With any questions and thanks for looking. The item "Johnson 48 Porcelain Sign Original gas & oil sign porcelain sign" is in sale since Friday, May 24, 2019.This item is in the category "Collectibles\Advertising\Gas & Oil\Merchandise & Memorabilia\Signs".fxxd1" and is located in Gainesville, Georgia. This item can be shipped to United States.