Model #TB5120 / Model #TB5320 (screwed)
Bore: 13,89 mm.
Bell diameter: 216 mm. (Bellflex)
Inner slide: cromed brass
Outer slide: silver plated brass
Body: lacquered brass
Bell: silver plated brass
Silver plated copper bell upon request
Model #TB5320 (screwed)
Bore: 13,89 mm.
Bell diameter: 216 mm. (Bellflex)
Inner slide: cromed brass
Outer slide: silver plated brass
Body: lacquered brass
Bell: silver plated brass
Double screw detachable bell
Silver plated copper bell upon request