The Signature Gridiron features the facsimile (exact replica) signatures of each team roster around their respective home fields. Each print is individually hand numbered and delivered in a 12 x 20 wood frame with a plexi-glass front panel. Each team Signature Gridiron Collection is a limited edition of 5,000 and each is accompanied with a certificate of authenticity. Officially licensed by the NFL and NFLPA. Proudly made in the USA by The Highland Mint! Signatures are updated periodically.