This one could be a victim of the 70s 'blond and brass' wave.
The mid-late 70s were a time of 'soft rock,' granola and Rocky Mountain herbal therapy, and a lot of people took it out on their guitars. Macrame straps, clear finishes, etc. Can't remember where I read it, but someone in in interview talked about stripping a sunburst Les Paul back to bare wood and changing the nut out for brass and how it was, at that time, the thing to do.
And of course they're now kicking themselves...
The best thing about the 70s? They ended. They were so bad they became the 80s!