This is a Bb horn, same range as euphonium, with 3 valves. The detachable bell stows nicely in the case to save trunk space! It would be an unusual horn to own, and I would find it fun to have sometimes. Condition looks quite good. It was once used in an Army band, based on the case stencil. It comes with the alligator-look case that Besson used for years. If you can afford a part-time horn/toy, don't wait - these don't come up often. Price is $900 or best offer and shipping is only about $50.
https://www.ebay.com/itm/Bb-Bass-Her...m/392784176119