When turning the crank a handdrawn prehistoric landscape rolls by, occupied with dinosaurs, each showing a small amount of movement.
The handdrawn scenery inside the frame is small, just a little over a poststamp.
Landscape and dinosaurs are drawn with pencil and pen, the moving limps, tails and heads are made of paper, attached to a thin wire of iron.
This iron wire reacts to a magnet swaying back and forth while the landscape slowly passes by, operated by the crank.
A simple idea, but with many possibilities.