Novag Robotic Advantage (1980s) Played at about 1850 to 2050 rating
Harder to store and prone to mechanical issues. Mechanism was clearly a sign of its time. Excalibur Electronics scrapped their own attempt with an updated robotic arm. The only known picture of their prototype is this.
Read more about it here
http://www.ismenio.com/chess_collection.html
Novag Robotic Advantage (1980s) Played at about 1850 to 2050 rating