Forgot to mention, As we suspected, the frame is completely steel. The rear dropout is Shimano, though you can barely read it from all the scratches from tightening the singlespeed, I would guess.
Also, the seller, J, was an awesome guy. Drives a VW bus, builds and rides vintage BMW motorcycles. Was super nice, said the bike had attracted a decent amount of attention in the 1 day it's posted. I was telling him about how I was trying to research it online myself, was having trouble and how the bike was pretty unusual. The friend he got it from was also a VW bus traveller who had headed south for a trip and was unloading what he had so he bought it from him.
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