by chrisguyw » Tue Sep 22, 2015 5:08 pm
Although it does look like a "sigma" I sort of ruled this out as the Sigma did not make its first appearance until March 1969, and judging by the parts used on the slot car, I tend to think it was built a couple of years prior to that. (Maybe it was built by Paolo Martin.....the sigma designer....as a precursor to the real thing) 8-)
The motor used in the car is a Pitman, but it is the 706, not the 704......the brass side plates are the giveaway.
Anyway, it is a great find, ditch the rear orange sponge, and enjoy the patina!!
Cheers
Chris Walker