This is part of an AGR-2A, Peerless Instrument Co Alternator Generator Regulator Tester. It came in an auction lot, but I have no use for it. Yours for the cost of shipping (approx. $5). I don't know that I've posted here before, but you can check my credibility over on garagejournal.com, where I post as "paulsomlo".
The Jalopy Journal
