Clarinet (high F?)

Thirteen-key clarinet made entirely of silver-plated brass, in one section. The integral bell is soldered to the body joint, as is the mouthpiece tenon. The saltspoon-cup keys are mounted in posts with rods, and have flat and needle springs attached to them. The fingerholes are raised from the body tube. The low E3/B4 and F3-sharp/C4-sharp keys have brass rollers on the touches. The throat A-flat key is straight. There is a brille key on the lower joint. It has a wooden mouthpiece with socket joint. The bell has a ligature screw ring for a lyre stand. Nominal pitch: F(?).