Originally Posted by
nlpakk
Thanks Joe. I did go and read the difference but I'm still a little confused.
The internal motor is directly attached to the hand wheel and there's no belt, so if you can't see a belt, it's a 201-2. If you can, it's a 201-3. 201-1 is a treadle, 201-4 is hand crank.
Nearly all motorised 201s sold in the U.S. are 201-2s. I've never seen one because all the 201s here (Australia) are from Scotland, where potted motors were never fitted.