You are looking at a Vintage 1970s Iron On Oakland Raiders NFL Football Helmet - store Display. This was a store display piece from the 1970s.  You selected the number that was written on the transfer, and the store would put it on a t shirt for you.  The item number for this is E-27.   There are pin holes from being tacked up.   This is a display piece only, cannot be used as a transfer. Please review pictures for details and email any questions