The RB-100, introduced after WWII, features a maple resonator with white binding, 1-piece flange, mahogany neck with unbound rosewood fingerboard, “dove wing” peghead, and decal logo. The “stairstep” tuners are likely original, although they have received new buttons. The finish on the resonator is in nice shape, and the nickel-plated hardware is original with the exception of the arm rest and tailpiece. Has an old set of D-tuners installed. Comes in a hardshell case.