rwiegand wrote:How were they used? Why the long bell? What would you do with one if you had one now? etc.
Troop travel in the middle of the 19th century was often by foot. Marching. In order to keep the troops in step, and pass the time, musicians marched at the front of a column of soldiers with the officiers. The problem was, that their bells would either be pointed forward (where you're going, where, by definition, there isn't anyone yet) or skyward (up to the clouds, where the men aren't either). You want the musicians in front, because you want them to be able to react to changes quickly, not be at the back, and get the news five or ten minutes later.
A new kind of instrument was developed, one the soldiers could hear in the rearward ranks. These were Over The Shoulder, or OTS horns. As you see, the bell is pointed BEHIND you when you play. There were a whole family of OTS horns, from Eb cornet to Eb bass.
The bell is long to try to counterbalance the valve block in front of the player. The valve block needed to be there so that the player had access to the valves.
It is interesting that this horn says that it was made by "Graves & Co" at (not with) the "manufactory of EG Wright", another New England maker. These two makers would later join forces (with others) in 1869 as the Boston Musical Instrument Manufactory (later the Boston Musical Instrument Co.).
Times changed, troops changed (got bigger, found better ways to move) and musicians changed (not wanting to arrive first at a fight; civil war musicians were often men who were too young, too old, etc.) so the practice of building OTS horns soon ended. Not the least of which was the problem of giving concerts with your backs to the audience...
Survivng OTS horns are very rare, and the ones that DO survive, for practical reasons, are often cornet sized, so a new OTS tuba coming to market, as you will see, is sure to fetch a good price!
Most of the extant ones that are not in museums are used in civil war reenactments or gawked at in private collections.
Thus endeth the lesson.