Sonny Terry Heritage Edition Harmonica includes a 10-hole diatonic harmonica and a signature Sonny Terry autograph stamp replica. The harmonica and stamp come in a magnetic case with images and graphics from Sonny's time creating his unique work. Featuring a sealed, double lacquered pearwood comb in ochre/black like the historic Marine Bands the harmonica offers reduced swelling. This harmonica covers 3 octaves of tonal range for a quality playing experience.