This Baltimore Colts mini helmet was signed in blue by 4 Hall of Fame members of the 1958 and 1959 NFL Championship teams. Signatures include Raymond Berry w/ "'58-'59 World's Champs" and "HOF 1973," Art Donovan w/ "HOF '68," Gino Marchetti w/ "HOF 72," and Lenny Moore w/ "HOF 75." This mini helmet includes a Great Moments hologram and COA.