This is one of the many stencil brands. Some think they may have been made by Couesnon (who is known to have made at least a few of the stencil brands). Here is a link to a review of one on clarinetpages: http://www.clarinetpages.net/vintage-odd-brands/jardin-emil-jardin
Basically it is probably a decent intermediate-level clarinet as were many of the vintage French stencil clarinets.