TR-31 'Schoenau'
rotary trumpet Bb
valve casings and slides in nickelsilver
bell w/ 135mm (5 5/16") diameter
bore 11,10mm (0.437")
-> Genuine Kruspe bell taper according to Richard Stegmann <-
TR-42 'Coeln'
rotary trumpet C
valve casings and slides in nickelsilver
bell w/ 130mm (5 1/8") diameter
bore 11,10mm (0.437")