The truss rod is loose. There is a point where the waving of the neck and the fret are partly cut off, and there is a point where the truss rod is vibrated. Manufactured in the late 1950s.The item "Teisco K-4L / Electric Guitar with Hardcase made in 1950's Japan Vintage" is in sale since Friday, January 17, 2020. This item is in the category "Musical Instruments & Gear\Guitars & Basses\Electric Guitars". The seller is "tresurejapan" and is located in Japan. This item can be shipped worldwide.