A hundred years ago this month, the June 1922 issue of Popular Mechanics showed this watercycle, invented by Edward Bellman of Evansville, Wisconsin.

According to the magazine, the craft was made of aluminum tubing, and could be quickly taken out of storage and assembled with thumbscrews. Buoyancy came from two inflated tubes which slipped into the frame. A propeller was driven by bicycle pedals, and the rudder was controlled by a handlebar.

The entire craft weighed only 20 pounds and could be packed in an ordinary suitcase. The inventor envisioned the craft for use as a pleasure craft or for lifesaving purposes.