Antique Joe Louis Boxing postcard Hello, I have a antique Joe Louis postcard. Can anyone tell me how much is it worth? I have attached photos of the front and back of the postcard. Thank You Category: Sports Cards and Sport ItemsMedium: PaperDistinguishing marks: SignatureDate Period: 1930'sFor Sale?: Yes Know something about this item?Log In and Add New CommentIf you don't have InstAppraisal accountclick here to create one for free!