Hello, I am just looking into finding out what I can about my Bass Clarinet. On the Case it has a Gold Seal with Two heads inside a Circle with G. Leblanc Paris on the border, some french on border below heads. Inside of case is Black. The instrument itself has G LEBLANC PARIS On it exactly as above (in all caps) engraved into wood. It looks to be a dark Cherry wood. Goes to Low C Instrument Number on back above thumb rest says 10481 From the basic research I have done, looks to be possibly 1950's cant really find anything close to it. Any information that can be given would be helpful. I am just curious as to the history of my instrument. Acquired it through my private lesson teacher, who has kept it and taken great care of it. She lived in Paris before coming to the US and she brought the instrument with her.