Bob Griese HOF 90 Autographed Authentic Dolphins Mini Helmet JSA COA & Case. Signed with a black sharpie on an Official Authentic Riddell Miami Dolphins Mini Helmet. Bob Griese has added his HOF 90 inscription to the mini helmet. A plastic display case is also included. You will receive a numbered COA from JSA. The mini helmet has the matching JSA numbered sticker attached. This autographed mini helmet has been stored in a mini helmet display case since the signing. Shipped with USPS Ground Advantage. I ship internationally through the eBay International Shipping Program.