Vintage alvarez guitar dating
I wrote to the then distributor of my guitar and the Managing Director wrote back saying he remembered my model being launched.
With the popularity of 7- and 8-string guitars, a 9-string seems like a natural progression for most guitar builders, but in this case a 9-string is hardly what it seems.
I've noticed that Yairi's just don't hold there value on the used market.
Even the Masterworks line that is all solid and high end. I've a 1966 all-solid Yairi nylon string (pre S&K Yairi split) and it sings.
There are other resources for dating Guild guitars which you may also want to consult, such as: “The Guild Guitar Book” by Hans Moust, and “Gruhn’s Guide To Vintage Guitars” by George Gruhn.
Both are excellent references and may be quite helpful to you in both determining the year of production of your instrument as well as identifying specifications and a historical context for the instrument.