kitty goes round and round

Spin the phenakistiscope disk at a mirror, peek through the slits from behind, and watch the kitties leap about and the donkey's ears flap.  Want an idea of how this works?  Here's a very short video.

-- Optical Toy, Phenakistiscope Disc with Cats and Donkey, ca. 1830; hand-colored lithograph on paperboard; H x diam.: 25 × 25 cm (9 13/16 × 9 13/16 in.); Museum purchase through gift of Mrs. John Innes Kane; 1948-124-3.  Image: collections.cooperhewitt.org.