This vintage machine offered 3D images on a pair of 35mm(?) filmstrips that were attached to a celluloid drum. A light behind the drum illuminated the filmstrip images. The filmstrips are missing as well as the glass(?) marquee on the front that advertised the contents. The drum does not currently rotate when a coin is inserted. There is light rust on most of the machine. There was probably a lock instead of a bolt on the front panel long ago. Operates on 110-120v AC. There is no ID on the machine. Any information on this rare machine would be appreciated. Approximate dimensions: 10" wide x 10" tall x 7½" deep. Thanks for looking!