Pickups for almost all Harmony electric guitars and basses were manufactured by Rowe Industries/Rowe De Armond in Toledo, Ohio, from the mid 1940s until the closure of Harmony in the mid 1970s.
The serial number is in it but i cant find the year it was made or the value of it anywhere! Everything seems to be original except the pick guard Dear Guest: You have the Make, Model Number, and Serial Number, all you really need now is the year of manufacture.
Harmony guitars are not usually mentioned in the same breath as Gibson or Fender and tend to be considered low-grade instruments.
Ergo, once you have this your best bet (to get an acturate estimate as to it's fair market value) is to go to Barnes & Nobles or another good book store and look it up in the "Blue Book for Electric Guitars" latest edition, check the copywrite date. Year of manufacture could be on the base of the neck or coded within the guitar's serial number.
The name is now used by an unrelated company based in Illinois that imports guitars from Asia.
More info on vintage Harmony guitars at Harmony Database * From Wikipedia As previously stated these old 1260s are becoming collectors items and owners are forever looking for ways to bring out the best in them.
During its heyday, Harmony accounted for more than half of all guitars built in America each year.
Due to this industrial level of production, it is unlikely that even its less common guitars could be called rare.