Besson Trumpet 500377 AS ISNotes This listing is being sold as is at a discounted rate due to our inability to test it. Valve action and sliding parts feel smooth. A Besson Trumpet 500377 AS IS in Fair condition! At Evolution Music, we attempt to highlight cosmetic defects (if any) by picturing every angle of every piece of gear so you know exactly what you are getting. We always picture any and all accessories too. What you see is what you will get so please check out the