Rotation

Rotation, manufactured by Genco in 1936, is one of the earlier electro-mechanical (EM) pinball machines from Genco Manufacturing Company, which operated in Chicago from 1931 to 1958. As a single-player game from this formative decade of pinball, Rotation offers a look at the mechanical and electrical innovations of the era.

Key gameplay features include an operator-controlled option for either 7 or 10 balls per game, a configurable aspect that shows the mechanical flexibility built into early machines. No specific theme is recorded for Rotation, and its simple presentation is typical of mid-1930s pinball, with era-appropriate graphics.

Little further documentation survives about Rotation beyond its technical specifications, but its early production date makes it a notable artifact for collectors and historians studying the development of electro-mechanical pinball.