How cool - only the third I've ever seen (not in person, though - I've only seen mine in person). I note this one has a Columbus SL/SP tubing decal (looks like the one used up until 1979/80) and I don't see any fender eyelets, either. No braze-ons rear brake cable guides or gear lever bosses. So another race frame. I like the looks of the fork rake here; mine seems to have too severe a rake vice this smoother transition.

Thanks for posting, John

DD