Yamaha SA-series archtop.... circa 1975 (give or take a few years)
Looks kinda like an SA30T, but the lower f-hole is covered by the massive pickguard and the body is slightly different. Kind of a wierd shape. Looks more like an experimental body to me. I don't recall that one being mass-produced. If it was, it was probably sold only in Asia. Just a few semi-educated guesses on my part.