2"Slip slides" in animated form
This is the coolest website - Jack and Beverly's collection of vintage optical motion toys including the "magic lantern, Zoetrope (wheel of life), Praxinoscope, Phenakistoscope, a Polyrama Panoptique, a Kinora, Mutoscope, and flip books. These toys are the genesis of motion pictures. They are, in effect, single frame animations like a modern movie cartoon."
Read about them and see more at
The Art of Amy Crehore