I got these brakes with a bulk lot of 80s parts and don't know what specific bike they are from. They seem to work perfectly fine as far as I can tell, but the previous owner lost the barrel adjusters (they are the non-threaded type that just slide in, commonly lost on these models). Additionally, the front and rear pads are mismatched. They seem perfectly usable, just not matching. Priced accordingly.

Feel free to message me with any additional questions.