OMG! Your post is past financial recognition but will always deserve to be read and enjoyed. I am also an enthusiast of period brass instruments and a baroque trumpet player. I had a 1903 "peashooter" trombone in the key of C. It was about eight feet long, and the bore was about the same diameter as a trumpet. It was elaborately engraved silver without a single flaw, despite having no case.

Today, it may still hang unnoticed in a pawn shop after my ex-wife took it.

Somewhere in the Nashville, TN area?