Bass clarinet in B-flat

Bass clarinet made in four sections: nickel-silver crook and bell, and cocus wood body joints with nickel-silver ferrules and keywork. It has nineteen cylinder-cup keys, mounted in posts with rods, with flat and needle springs attached to keys and posts, cork paddings, and brown leather pads. The third, fourth and sixth fingerholes are closed with keys, and there are three ring keys. The tenons are wrapped in cork and thread. Tab seam on bell. Mouthpiece is missing. Nominal pitch: B-flat.