"J.gras Rosewood Clarinet"
Clarinet in B flat with Boehm system. These instruments of fine quality were made in Paris between 1930 and 1956 according to "The Golden Book of the French Clarinet" Here the keys seem to be in silver or silver plated metal, even if no hallmark appears. The springs and buffers still seem to be in working order. The instrument is made of rosewood. 
Le Magazine de PROANTIC
TRÉSORS Magazine
Rivista Artiquariato