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Our Octagon case (left) is steel with a hammered finish, while the original (right) is brass with a fabric material glued to it
Our base (left) appears crude next to the original. Also, ours has extra holes
Our disk (left) is made of 1/8" thick aluminum, machined to produce the shape, while the original is very thin and pressed
The original (right) has a part number plate riveted to the motor base. Ours was cast with the plate attached
Pictures of the original synchronizer. AC voltage from the power line was applied to the coils, which causes the motor to be synchronized to the 60 Hz power line
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