Silver-toned brass clarinet

I have an old silver-toned brass clarinet in a black hard case.  The instrument is engraved "Ken Barger Mfg. Co." on the bell.  Above the company name is a larger inscription, "Ken".  The numbers "2577" are engraved under the lowest valve key and on the back of a long key midway down.  The numbers "44" are engraved beneath two other valve keys - one in the cork pad of the top key and one in the back of the metal key above the long key.

The case contains a Steel Ebonite mouthpiece, REG. U.S. Pat. Office, inscribed "Special" MADE FOR DICK STABILE.    It also includes a metal lyre and one reed in a cardboard holder imprinted as follows:  "Progress Publications, Omaha, NE, ReedRite^TM, Printed in USA.  There is a hand-written masking tape label on the bottom of the case reading "Walsenburg, Colo."