I acquired this guitar in the fall of 2008 and it has a market value of $75. It is a unknown Knox model 2 pickup Electric Guitar from the 1960's with 2 goldfoil pickups. The prize on this guitar is the goldfoil pickups and I've already used them for another project.The Teisco brand name stands for 'Tokyo Electric Instrument and Sound Company'. Teisco was founded in 1946 by renowned Hawaiian and Spanish guitarist Atswo Kaneko, and electrical engineer Doryu Matsuda. Teisco guitars sold in the United States were badged "Teisco Del Rey" beginning in 1964. Teisco guitars were also imported in the U.S. under several brand names including Silvertone, Jedson, Kent, Kingston, Kimberly, Tulio, Heit Deluxe and World Teisco. While guitars manufactured by Teisco were ubiquitous in their day, they are now very collectable.