Sold December 2022 Back to Archive

PM Research Rider Ericsson hot air engine - stock code 10609

A Rider Ericsson hot air engine, commercially produced by PM Research in the USA and marketed in the UK by Forest Classics.

Complete with purpose built wooden box, it turns over freely and has aparently had little, if any use.

Complete with manufacturer's documentation.

length/inches 7
width/inches 5 1/2
height/inches 8 1/2
weight/kg 2
wheel material aluminium, 3 1/2 inch diameter