An Extremley Rare Unit for Mono Projection from a Richard Homeos Stereo View. Cosmetically in good condition but missing the rheostat.

The folowing is a translation from the Richard 1927 catalogue:

"We have just completed the equipment of the Homéos by the creation of an extremely convenient and essentially portable projection lantern so as to be able to project positive films in any room lit by electricity. This lantern, provided with a socket to install it instantly on our ball-joint and conical stem stand [table-top tripod], is connected in place of an ordinary electric lamp by means of a small rheostat. A very simple mechanism, similar to that of the stereoscope, allows you to automatically move from one image to the next. Placed 350[cms] from the screen, it gives an image 1m high".