Hello everyone! I am looking for a missing part for my father's trumpet, and it's proving difficult to find. I should note that I know nothing about trumpets.
It's an Olds Recording trumpet from 1941-42. The trumpet is missing its third valve slide (the entire removable section). I'm told by the local shop here that the bracing is a sheet style, rather than barrel/post (again, I have no idea what that means).
If you know of where I can find this piece, please let me know. I appreciate any help, thanks!