During the once-over, I notices a couple issues:

1) Bottle cage bosses are torn away from the frame:


2) Unknown BB:




I was able to remove the lock-nuts around the BB after some suggestions here on the forums (thanks). But even after picking up the correct tools, the BB itself wouldn't move:




Today, the frame was completely disassembled, save the BB, and brought to a bike manufacturer here in Zürich (Fahrradbau Stolz). After speaking briefly with them about the two issues, they kindly agreed to fix the bosses and remove the BB for me. The bosses will be replaced with a "star" shaped boss instead of the simple cylinder. I believe they do this because the round hole for the boss is no longer exact and slightly corroded. Also the star will give extra support on the ultra-thin downtube.

When these guys are done, I will decide the next steps. Those range from throwing some spray clear-coat over it as a temporary protectant before hanging the frame up for some time. Or perhaps the next steps will commence with a clearcoat removal, a brushing and perhaps a plating.

At this time I am on the lookout for an XTR BB and some canti's. The installed BB was 110mm and I thought it was a bit on the long side. Maybe a 107 would be best, if I can find it.

The right hand shifter also had some issues with the return spring. I will be taking that apart to see if I can't fix it.

Anyway, looking forward to working on this fine classic mountain bike and am particularly excited about all the various plating and finishing types that can be done with this steel frame.