In 1921, four Navy buddies—Manny Rosenfeld, Moe Strauss, W. Graham “Jack” Jackson and Moe Radavitz—pooled $800 to open the Pep Auto Supply Co. in Philadelphia. Since then, the company has grown to more than 700 stores. We’ve rounded up classic photos of Pep Boys shops from the 1930s and 1940s to celebrate their 91st anniversary in the auto supply business.

Interior shot of Pep Boys 1941.