Specificaties:

compact (traditional) wrap
gold brass
detachable bell with small rim (Kranz)
bell diameter 240 mm (9.5?)
dual bore 14,3/14,7 mm (0.563/0.579?)
conical BRONZE light weight slide with long water key and exchangeable brass lead pipe “B2”
2 K&H-“open flow“-nickel silver rotary valves with light rotor, progressive bore
straight brace on body, curved grip brace on slide
adjustable trigger of domestic plum wood, adjustable trigger board on second valve lever
clear lacquer
mouthpiece KÜHNL bass 7.6D