George Powell and his amphibious boat that drives on caterpillar wheels.
Title reads: "California"
Glendale, California, United States of America, USA.
George Powell Mobile Boat. Inventor Powell has designed an amphibious boat. We see the boat driving around on land - it has caterpillar wheels like a tank. The boat drives into a lake. Once in the water the wheel motor is switched on and the boat is powered by paddles. Narrator suggests this invention is a sign of things to come in the future.
Note: may have once been part of LNER issue.