The Polychrome Tricone is a resonator acoustic guitar built by National. This three cones guitar was manufactured in the United States and is a National Reso-Phonic Made In USA model. Key features include a Steel Body, Lightly Figured Maple Neck, Rosewood Fretboard, 25 11/16" Scale Length, Three Resonator Cones and Black finish. The specs listed below pertain to the 2005 product year model pictured on this page.