Don’t miss out on this gem! This is a Riddell 1972 Miami dolphins mini helmet, signed, and inscribed by Miami Dolphins head coach Don Shula. Don has signed HOF 97 along with his signature on the helmet. This has a certificate of authenticity from ENV collectibles number 12121. Also included is a picture of him signing the helmet, which is also authenticated. Included is a signed Collectors Showcase of America card, which is numbered 0340. All of these items has been stored in the collectors case shown in the picture. This is part of a much larger collection being listed.. Please see my other listings.. Don Shula was the Miami Dolphins head coach and in 1972 they were undefeated 17-0 season and won Super Bowl VII.