This is an International valve trombone model list. I have included an extra column to indicate the year(s) when the instrument was (at least) in use. If both the "Year Introduced" and "Year Discontinued" column is filled in, the "Years Used" column is left blank (no need stating the obvious). Italics indicates "educated guess".
The following list is by no means complete or even correct. If you find an error please let me know (see main page for e-mail).
|International valve trombones|
|Model Number||Model Name||Year Introduced||Years Used||Year Discontinued|
|50G||#? Bore International||-||1919||1923|