This is a 8.5x11 Letter On School Letterhead Authentic Signed that has been Personally Signed & Autographed by Harry Wendelstedt. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by PSA/DNA #U87256.Press Pass Collectibles offers a 100% Lifetime Guarantee on all Autographed & Signed Harry Wendelstedt memorabilia.