Board Game Archaeology #41 Master Mind (1972) by Invictus Plastics
Board Game Archaeology #41 Master Mind (1972) by Invictus Plastics,Minstrel 3 with Keyboard - Z80 based ZX81 kit,Minstrel 3 for ZX81 case - Z80 based ZX81 kit,Mastermind - Hasbro Games,Amazon.co.jp: Mutual Mania Board Game : おもちゃ