@ Carl King
I put nylon strings on it simply because that is what it had when I got it. I don't know what it had originally.
The tag inside says Orlando Guitar Model 335 (may be 835) Japan. Stamped on a wood block at the base of the neck inside the hole are the numbers 197 (may be 107).
Try to stay sane. It's Important!
My other solitary mind exercise - Sense & Nonsense