Miriam, would the "large" hand wheel that you mentioned, describe the 6 spoked model 27 handwheel that I referred to in my previous post and thereby disqualify it from use on the 201-3 and if so...would you know which handwheel would fit on the 201?
On another note...the serial number has an EE prefix...and I wondered if that prefix could identify the machines origins or is it solely used in dating the machine?