Urban-Joy 'Spirograph' 16mm home projector by Henry W Joy, 1920, with lamp holder, discs and case.
The Spirograph projector was originally designed in England in 1913 by Theodore Brown (1870-1938), who sold the rights to Charles Urban (1867-1942).
Urban’s engineer Henry Joy (b. 1872) developed the Spirograph from 1920, and some were produced in 1923 shortly before the collapse of Urban’s business. It used 10½ inch diameter discs containing 1200 frames arranged in a spiral of twelve rows. When the handle was turned, the disc revolved and gradually tracked across behind the lens. The discs were reproductions of professional feature films and the projector was intended for home use.