If you have any info on R&R's please send me some Email.
This frame was very different "Back in the Day"...
Nowadays it's common place to see a low profile/compact frame like this but in 1977 most people thought this was weird!
Notice the mounts for a chain guard, these days most of the cheap bikes won't even have these.
Beleive it or not? the top tube, seat stays and chain stays are all one tube with no breaks, just one long tube with some bends in it!