- gold brass

- bell
bell diameter 135 mm, french rim

- bore slides 11,2 mm

- nickel silver valve group
- bronze valves
- unibal-joints
- spiral-spring-mechanism

- leadpipe interchangeable

- long waterkey

- handletrigger mechanism and
waterkey at 3rd slide

- c-key, venthole

- silver-plated
option:
- bore slides 11,5 mm
- undersilver-plated and
gold-plated