Antique Musical Instruments/Double Bell Euphonium


I recently retired from band directing. I've had an old double bell for many years that has hung on the wall with flowers in the bell. I'd like to know if I have a real piece of history here. Knowing the approximate value is an interest, but I really want to know this horn's place in either musical or military history.
C.G. Conn serial number 154002
U.S.Q.M.C. inscription (thus my military curiosity)
4 valves - 3 on top, 4th on side
A few dents...none on either bell or main body
A few broken solders, but all parts there and no major damage
All valves & slides move freely
Horn plays as well as a 1917 model leaks
My students have been intrigued by this horn for decades. I promised myself upon retirement one of my projects was to figure out what this old girl has been through. You are my first stop. Thank you for any insight you might be able to offer.

With some more information, we may be able to figure out which model this horn is.  (Large Bell up or forward), diameter of the bells, bore, etc.)  And, the Quarter Master Corps does indicate a military history.

But if its  provenance isn't traveling with the horn, it is extremely unlikely to be able to determine the particular history of the horn.

The Double Bell euphonium is claimed to have been invented or at least put in production in the 1880s.  The earliest catalog, I've seen with the Double Bell shown is the Conn from 1890.  

Antique Musical Instruments

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Kenton Scott


Please note: My area is BRASS instruments, not other wind, string or percussion instruments. I will provide information on antique, obscure and out of production BRASS instruments. 1) Please don't ask for evaluations, I'll not provide them on this site. 2) I am often asked very similar questions, so I'd invite you to first check on Much of the information I have garnered about this topic, I have posted on this WEB site.


I perform in several historical bands, have informally researched the area, repair brass instruments, and operate a Forum dedicated to the topic at

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