Josef Keilwerth TARV Rotary Trumpet Rare Brass Musical Instruments
INTRODUCING THE VALVE TROMBONE Valve Trombone 101
I make no claims about the valve alignment, but it seems to play fine for me. Bach Stradivarius Model 43 Bb Trumpet. The mouthpiece receiver opening is 0.41 inches, close to a flugelhorn size. Be aware that there are several flugelhorn and cornet shank standards.