PICTURES SHOULD TELL YOU ALL I KNOW ABOUT IT. TRIED TO RESEARCH IT A BIT BUT FOUND ALMOST NOTHING THAT WAS JUST SIGNED THIBOUVILLE ALL OTHERS WERE ASSOCIATED WITH SOMEONE ELSE. CAME FROM A RECENT ESTATE AUCTION.  IN THE INSIDE POUCH WAS THE EXTENSION THE MUSIC HOLDER AND A MOUTH PIECE. THE MOUTH PIECE DOES NOT FIT SO I ASSUME IT WAS ADDED JUST FOR DISPLAY EFFECT. IT IS EXACTLY AS I FOUND IT. NEEDS HELP AS DOES THE CASE BUT STILL VERY NICE TO FIND ANYTHING THIS OLD WITH A CASE.  ON THE VALVES ARE THE NUMBERS 43  44 45 WHAT THEY STAND FOR I HAVE NO CLUE.  BELOW THE NUMBERS IT IS STAMPED U.S   THATS WHERE I FIGURED MAYBE CIVIL WAR OR MAYBE NOT?  ALL I KNOW IS I BOUGHT HERE TO SELL TO YOU.  IT IS HERE TO SELL SO BID TO OWN BID TO WIN!!   HIGH BIDDER OWNS IT.