Production run 10554. One of the last of the electro-mechanical games. One or 2 prototypes were created for this game using solid state components. This game belongs to a co-worker of mine. It has been in his home since 1980. I offered to come by one day to check it out and make some adjustments. I ended up shopping the playfield, replacing flippers, and adjusting and cleaning all of the relays. It looks and plays great now. I wanted to show what a beautiful machine this is.