I've added a few more pictures.

https://www.bikeforums.net/g/album/34687630

I think its repainted -- on a closer look.

The dropouts are SunTour. It doesent have any attachments for water bottle holder.

Like Unworthy1 I'm beginning to think its japanese. I forgot on my list of ususal suspects Miyata and Nishiki. They were quite common around here in the eighties.

Anybody care to venture a securish guess?

Man there are rules for a beginner on this forum!

/Chris