I just listed an exciter armature on ebay from the SA 200 shorthood I have been parting out. S/N on the machine is A254269 and the code is 1903. Thought about putting it on here directly but didn't know how much to ask and wanting to get max coin so I can pick up some new lead reels.
About the armature, it's been tested, dipped or baked can't recall what they said exactly, day I picked it up I was running to 10 different places and had a tight timeline and brain was all over the place. However, they did whatever it is that recoats the windings, sorry not very technical. They've done whatever it is that cleans up the contact areas and tested it. This is the same shop that did the starter I sold months ago and they do good work.
If there are any questions I'll do my best to answer them.