Up for auction is a vintage RAC Rotating Dial Compression Tester Model No. 1535, made in the United States in 1978. This rare piece of Americana is a must-have for any collector of transportation memorabilia. The rotating dial feature allows for accurate compression testing, and the modified item aspect ensures that it is a one-of-a-kind find. Perfect for display or use in a garage, this compression tester is a true gem. Don't miss out on the opportunity to own a piece of automotive history!