Rare Cal Ripken 6 by 9 inch postcard sent by SkyBox to hobby media to promote their new E-Motion product launch press conference at the National Sports Collectors Convention (back is addressed and postmarked and has writing and minor wear, but no creases or tears) PLUS 8x10 publicity photo from the NSCC event featuring Ripken's first manager, Hall of Famer Earl Weaver. ONLY ONE SET AVAILABLE FOR SALE.