I scored this one from a storage closet flipper a few weeks ago and just started looking it over. It's in fair shape, a few dings in the TT. I'd hoped it was going to be a hair smaller, but had already agreed to take it before I found it's a ~63cm. The only stamping I can find is on the BB shell, "W19". I'd guess by the parts ('83 NR RD/shifters) and 123mm rear spacing that it's late 70s-early 80s.