I can't believe I have found some fellow owners. I have a Newance
s/n FG 1600A. I have had it from new 1982. I have tried to find out more about it. The Yasuma Music Company (Tokyo) packed up in the late 1970s.
I am interested in the martin connection. Now I think about it I can see where this comes from.
I must try Martin strings.It plays and sounds great. The colour after all these years also looks lovely.

How can I tell which model it is? Anyone know?
Cheers