Estimated Sale Price: $1500 - $3000. This multi-player signed helmet has been autographed by reigning NFL MVP Patrick Mahomes, Pro Bowler Travis Kelce and the fastest receiver in the NFL, Tyreek Hill. A helmet signed by any of these three players are hard to come by, and having one signed by all three makes it very rare. This comes with a certificate of authenticity from James Spence Authentication.