1920/30 Buick Authorized Service Single Sided Porcelain Sign, marked Burdick. Approx 42 inches in Diameter. Great Colors and Graphics, Shows Very Good. With minor Dings around the Edges and a little Smudges at the Bottom.These Buick Signs are getting Harder and Harder to Find in this Condition. The item "Vintage Sign Buick Authorized Service Single Sided Porcelain Valve-In-Head 42" is in sale since Tuesday, December 13, 2016. This item is in the category "Collectibles\Advertising\Gas & Oil\Merchandise & Memorabilia\Signs". The seller is "jcheinwinduptoys" and is located in Pittsburg, Kansas. This item can be shipped to United States.