This horn has all sorts of amazing extras - from the custom Lawson leadpipe, to the built in F extension and stopping valve, you have the full range of a double horn but with the light weight of a single. It's like driving a supercharged sports car. It's an older model made of unlacquered gold brass. It has adjustable mechanical linkages (no more broken strings!) an amado waterkey, a custom duck's foot, and a detachable bell (BAGS of Spain case included). The compression reads 2.8 (across 5 valves!). The gold brass gives it a bit of darkness to counter what would typically be a bright sounding instrument.
Perfect instrument for brass quintets, pit work, and so many other things. GREAT price.