I got this old clarinet and i need help figuring out what clarinet this it. I think is was made anywhere from 1920-1940. It was my greats aunts passed down to my grandmother then to me. On the bell it says Pan-American DIV.C.G.CONN, LTD.U.S.A. The serial number is 114551. It has a red inside of the case and the outside it brown but kinda looks like alligator skin.