"Stradivarius" - 190 Series - Key of Bb 

.462" L bore

standard weight body 

lightweight one-piece hand-hammered #1 bronze bell 

5" French-style bell rim

two-piece valve construction with brass valves and bronze ballusters 

standard construction modified #43 leadpipe 

Monel pistons 

1st slide thumb ring

lightweight brass outer and lightweight nickel-silver inner valve slide tubes 

forward facing 2nd valve slide

crescent-shaped valve pul knobs

two main tuning slides standard - "D" shape and single radius 

silver-plate finish