Originally Posted by
rando_couche
The one thing that stands out to me is the rear drops: Shimano SF-R semi-verts. I don't think I've ever seen a bike made with them that WASN'T Japanese, and all the other visual cues are consistent with that. So, probably early 80's Japanese.
We used them at Trek in the early 80s, but that doesn't look like a Trek frame. And Gipiemme made a very similar looking dropout:
Are the OP's dropouts stamped "Shimano UF?"