Compensating horns are an interesting beast. They depend on tight valves in order to play well. This one registers a 1.2 on the compression scale and is in fine condition, made out of red/gold brass. It includes an F extension valve and a Bb stopping valve. No longer made by Alexander, this model is rarely on the market and is a good choice for those Bach Cantatas. This horn was custom made for Tom Newell, who was the 3rd horn player of the Boston Symphony in the 1960s/70s, and has his name engraved on the bell. Own a piece of history. $5000. Alexander fixed bell case included.