Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

I believe the copper brush is a replacement. I suspect the original wore through.

What model numbers are they actually?

Awesome finds btw.

There were no model numbers assigned to any of the 1930's Jensens until long after they were produced.


The numbers designation was added by collectors and a former Jensen sales mgr from the 1990's, based on configuration and cylinder size.


For example.....
The larger one with the #20 sized cylinder was originally miss-labeled later as a #10 or large cylinder #10. It is actually the #20 cylinder produced years before the #20 was assigned to it. This one was simply called the Jensen "Big Power Plant".


Gil