Mosser / S Mosser

Pitch: Bb
Maker: S. Mosser
Hallmark: S. Mosser/U.S.
Place of Manufacture: United States
Approximate Date: 1810-1840 
Material: Wood body and bell, wood rings
Keys: Brass
Keywork: 6-key, square pads
Serial Number: ---

Here are pictures of an S. Mosser, U.S. clarinet, which would have been made somewhere between 1810 and 1840. My thanks to Brian for these pictures.
Woodwind instruments of this period were more often of boxwood.