Based on the serial number this would have been made in 1975, which would mean it has a large-shank receiver. The conditions looks very good. Seller says it will ship with a "used case" but I don't know more than that. The buy-it-now price is $1,899 and there IS a make-offer button. If the horn is as good as it looks from the photos, the asking price is quite good!
https://www.ebay.com/itm/Besson-4-Va...m/363133167477