THIS IS A RARE ANIMAL.  3 PISTON VALVE FRENCH HORN / MELLOPHONE. TAKE YOUR PICK. MADE BY CONTINENTAL IN USA ?  MAY HAVE BEEN IMPORTED FROM GERMANY BY CONTINENTAL USA.  NOT MUCH INFO TO BE FOUND ON THE HORN. CONTINENTAL WAS OWNED AND RUN BY CONN. ALSO UNDER THE NAME PAN AMERICAN. THE LAST PRODUCTION DATE WAS 1949. THIS HORN IS SOMEWHERE AROUND 1930S - 1940S. I HAVE NOT SEEN ANOTHER HORN LIKE THIS ONE.  THE HORN IS IN EXCELLENT CONDITION ALL AROUND.  1 SMALL DENT BEFORE THE BELL ON TOP IS THE ONLY FLAW I HAVE FOUND. NO SIGNS OF REPAIRS , AND ALL ORIGINAL. THE HORN IS SILVER BRASS . ALL SLIDES ARE FREE AND WORKING PROPERLY. THE VALVES ARE LIGHTNING FAST , AND SMOOTH. VERY RESPONSIVE. I BELIEVE THE HORN PLAYS IN THE KEY OF F.  THE HORN PLAYS , AND SOUNDS AWESOME ! VERY NICE TONE. OVER ALL , THIS HORN IS IN MINT CONDITION FOR ITS AGE.  COMES WITH ORIGINAL CASE IN GOOD CONDITION, AND 2 ORIGINAL MOUTH PIECES. 1 3P , AND ANOTHER WITH NO MARKS ON IT. ( SEE PHOTO )  ALSO HAS AN EXTRA SLIDE WITH IT.  THIS HORN WILL MAKE ANY COLLECTOR VERY PROUD TO OWN...