This Autographed Collage 16x20 Photo has been Personally Signed by Hakeem Olajuwon & Clyde Drexler of the Houston Rockets. This item is 100% Authentic to include a Certificate of Authenticity (COA) / hologram by JSA Witness. This is a JSA Witnessed Protection Program item which means a JSA representative was present when this item was being signed. We conducted an autograph signing with Hakeem Olajuwon & Clyde Drexler where multiples of the same item were signed. While the photographs are representative of this item, the size, placement and strength of the signature may vary. Each item is hand signed, therefore, each autograph is unique. This item can be verified through JSA Witness.