So now we know what FR maker may have produced the DOs for Ron Kit, BITD , thanks Juvela
I did not view all the detail pix until now, but I agree this does appear an earlier frame (but not earlier than some Shimano bits were available) which may have had braze-ons added afterward, but could be a home-build or student frame-builder project as well.
Is that a University of South Carolina license decal on the back of seat tube that was masked off before the current paint job?
If so, odd to think the owner thought it important to preserve this decal.
Paint is odd too: lug-lining pretty shaky but someone with an airbrush sure liked making stars!
Any of our Oregon members reco the BB stamp as typical for a Driver's License? I think that's a good theory!