Vintage 1977 Mastermind44 Board Game for 4 People by Invicta - Etsy
Super Mastermind Master Mind Superhirn von Invicta in Berlin - Charlottenburg | Gesellschaftsspiele günstig kaufen, gebraucht oder neu | eBay Kleinanzeigen ist jetzt Kleinanzeigen
File:Electronic Master Mind by Invicta Games, Made in Hong Kong, Copyright 1977 (LED Handheld Electronic Game).jpg - Wikimedia Commons
1972 Mastermind by Invicta Complete in Great Condition FREE - Etsy
Vintage 1970s Deluxe Mastermind Board Game by Invicta - Etsy