This clarinet is from the estate of a former band director who collected vintage instruments. It plays and was tested by the jazz professor at the local university, but most likely needs adjustment and TLC service to get it in true concert form. This is a very nice full Boehm Bb clarinet. The serial number is K5134 putting it from the late 20's early 30's, and the markings say "Henri Selmer Paris Brevete SGDG" The bell has the US import stamp as seen in the picture. Serial numbers match on the upper and lower joint. There are some keys that aren't on modern clarinets.. see photo's. The case is a Selmer case, but I'm not sure it is original. The zipper is broken but I will ship in the case to protect the clarinet. I've done my best to take HQ photos at every angle to show everything to you. I'm not a clarinet expert, but I can tell by the reaction I've had showing it around that it is special and I would like it to go to a good home. Good luck and happy bidding! Please ask any question before bidding.