Revolving Cylinder Toy That Animates Images
Puzzle 14 of Sailing Hard Pack
Question is: Revolving Cylinder Toy That Animates Images
and the answer is: ZOETROPE
Word Meaning:
ZOETROPE — An optical toy, in which figures made to revolve on the inside of a cylinder, and viewed through slits in its circumference, appear like a single figure passing through a series of natural motions as if animated or mechanically moved.
Definitions from Wiktionary.