In case you are interested, the electromagnetic engine driving the model is a Junior Model E Wilkemp Electric Engine of Fishers, Indiana, USA. It operates on 110 volts. It was advertised in the December 1947 issue of Popular Mechanics for $6.95. Great for running accessories using a Votage Regulator to control its speed.
Retro Steam Tech aka Alan Palmer has a write-up of it on his website.
http://www.alspcs.com/Wilkemp.html