S.E. Shires Bass Valve Section

S.E. Shires Bass Trombone Valve Section, single valve rotor.  Boston Make, slightly used, in mint condition.  Is compatible with all Shires Bass Bells, tuning slides, and handslides for Bass trombone.  Would be an excellent choice for any Shires Bass Player when the heavier double valve isn't needed.  In-stock for immediate delivery.