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This is an original 1908 color lithograph of a pop-up diagram model of the inner workings of a three-phase squirrel-cage induction motor. Accompanying this model is a key index to the motor's principal parts. Please see all images.
CONDITION
This 107+ year old Item is rated Very Fine ++. Light foxing and aging. No creases. No tears. No water damage.
Period Paper is delighted to offer one of our most unusual collections. Dating from 1908 this collection of color lithographs consists of multi-layered diagram models of various motors and engines. The paper engineering necessary for the construction of this pop-up art is spectacular. We have tried to give you a sense of the many movable parts for each motor / engine in two digital images plus another image of the accompanying key to the working parts. (Please see all images.) This unique collection is in very good condition and will be of interest to engineers as well as artists interested in the art of pop-up images.
LTXA4C08