New, Unopened Nippon Ham Fighters Pinback Button This pinback button appears to be a commemorative item from a 1988 game, the year the Tokyo Dome was completed. Although unopened, some deterioration (blackening) is noticeable on the back. Please check the photos. We do not accept returns, exchanges, or complaints, so please understand this before purchasing. #NipponHamFighters #PinbackButton Item Type: Pinback Button