First off I know this ain't diecast it's just where most folks know me. I got this at an estate sale yesterday. I figure it is a souvenir puck since it has paper labels top and bottom. The "Offical" and "Czech" are moled in on the edge. The Bulls are no longer a team but were an exhibition game for our 1980 Olympic Hockey Team that went on to defeat the unbeatable Russians for the Gold Medal. A very sweet memory for most Americans that watched the game.