There appears to be one on Ebay right now. However, I would never buy from that seller unless you understand the condition will be grossly misrepresented. My horn came from there and required a record amount of repairs, the worst of which was a huge hole in the leadpipe covered with silver tape to conceal it. I avoid that seller now. Too bad because they frequently have something I'm interested in. Best of luck to you in your search.
Richard
King 1130 Flugabone
King 2280 Euphonium
King 10J Tuba
Conn 22B Trumpet