Plus and Minus
Manufacturer: Rotor Table Games Co, Incorporated, of New York, New York, USA (1935-1936)
Year: 1936
Date: February, 1936
Type: Electro-mechanical (EM)
Players: 1
About This Machine
The Plus and Minus pinball machine, manufactured by Rotor Table Games Co., Inc. of New York in February 1936, is a single-player electro-mechanical (EM) pinball machine from the mid-1930s. Specific gameplay features, artwork, and theme are not well documented.
As an EM machine of its era, Plus and Minus would have used electromagnets and relays to register scoring, with gravity, pins, and targets directing ball movement across the playfield -- well before the introduction of player-controlled flippers in the late 1940s.
Rotor Table Games Co. operated only briefly, from 1935 to 1936, making surviving documentation of its machines, including Plus and Minus, relatively scarce today.