Steiner Sports Exclusive Carmelo Anthony Memorabilia. Shop Our Wide Selection of Carmelo Anthony Collectibles. Carmelo Anthony is Likely to Go Down as One of the Greatest Players in New York Knicks History. Carmelo Anthony Autographed Memorabilia is Likely to Increase in Value, Due to His Legendary Status. Add Value to Your Basketball Collection with Our Basketball Collectibles Signed by Carmelo Anthony.