K.Custom Artist F-Rotor Trombone, Gold Brass Bell, Open Wrap
K.Custom Arist Series Intermediate F-Rotor Trombone with 8.5" Gold Brass Bell - .547" bore, Open Wrap, Off-Set Rotor, Nickel-Silver Slide.
XO 1240 Bass Trombone
Conn Alto and Tenor Trombones
K.Custom Artist F-Rotor Trombone, Gold Brass Bell, Open Wrap
Large Bore Tenor Trombones
The Horn Guys - Kuhnl & Hoyer Orchestra Signature Bass Trombone with Open-Flow Rotors
K.Custom Professional Artist Series F-Rotor Trombone w/ Axial Flow Valve
K.Custom Professional Artist Series F-Rotor Trombone w/ Axial Flow Valve
K.Custom Artist F-Rotor Trombone, Gold Brass Bell, Open Wrap
Jupiter JTB1100F Performance Level Bb Trombone w/ F Attachment - 635464123325
Axial flow valve - Wikipedia
The S.E. Shires Chicago model trombone was designed with the famed Chicago low brass sound in mind. The one-piece, gold-brass bell with a large TII
Shires Chicago Model Tenor Trombone with Axial-Flow F Attachment