Clarinet in B-flat

Clarinet made of cocus wood in four sections (barrel, upper and lower joints, and bell) with nickel-silver ferrules and keywork. It has thirteen cylinder-cup keys, mounted in posts with rods, with flat and needle springs attached to keys and posts, with cork paddings. There is a brille key at the lower joint (two ring-key), a straight throat A-flat key, and the register key wraps around the body. The tenon joints are wrapped with thread. The mouthpiece is made of wood. Nominal pitch: B-flat.