Hi Liz,
Short answer is no, other than it is a Japanese built (nylon string
classical?) guitar that sold for $200 new in 1968. It certainly has
not tracked with inflation (sorry). A guitar like this would be
considered valuable as a "player," which means there is no collector's
value to figure in on the price. I price a "player' based on the
features of the guitar (quality of materials and construction),
condition, and playability. As such, it is in close competition with
current production guitars. So, if it is a solid top Spruce or Cedar,
with laminated Rosewood sides and back, then it is in direct
competition with new classical guitars starting at about $250 new. If
it has a laminated top the price falls. If the sides and back are
solid wood (not laminate/ply) then the price rises. If the back and
sides are Mahogany, rather than Rosewood, the price drops again. And
so it goes. So you find a similarly appointed new guitar, figure what
that guitar would sell for used in the condition and playability of
your guitar, and set a price somewhere in that area.
Somewhere around here I have an edition of the Bluebook of Acoustic
Guitars, but it is out of date. My perception has been that since
2002 the demand for what I think of as "nostalgia" guitars rather than
"collectable" has dropped, as have prices. Ultimately its value all
depends on finding someone who wants to buy it at a price you can both
agree on.
Best wishes,
Dr. Jim Lowther