Wilt Chamberlain poster, issued by Sports Illustrated in 1970, flawlessly inscribed "Best Wishes/Wilt Chamberlain" in black marker. PSA has authenticated the signature and graded it GEM MINT 10. The poster (23x35"; visible dimensions), which appears to be dry mounted upon a cardboard back, displays light creasing throughout, along with slight bubbling from the mounting process. Matted and framed to total dimensions of 29.25x41.5". Full LOA from PSA. Please note: the size and/or weight of this lot will necessitate an increased shipping charge.