This is a slightly rare model: a NON-compensating Imperial. And it is rather full of dents. Starting bid, though, is $299. One possibility is to buy it cheap and get the dent work done. Then you would have the traditional Besson sound in a 4-valve non-comp horn. But if the price gets too high it would not be worth it to me. Not sure I would bother with the small dents, but work mostly on the bell, bottom bow, and large branch. The seller's rating is 100% positive.
LISTING HAS NOW ENDED WITH NO SALE.
http://www.ebay.com/itm/Boosey-and-H...-/311060768722