Clarinet in B-flat and A. Dalbergia melanoxylon (African blackwood, granadilla) body with nickel silver-plated ferrules and keys. Simple system fingering. A concentric nickel silver-plated double tube inside each joint is turned to change the clarinet key between B-flat and A. Four joints excluding missing mouthpiece. Keys have circular cups and leather pads. Much of the keywork is missing. Upper joint and lower joint are stamped: JAMES CLINTON/PATENT/117; Reverse side of lower joint also stamped: MADE IN BELGIUM.
The metal sleeve inside the joints of this clarinet was designed to make it playable in Bb or A. The composer Sir Arthur Sullivan was chairman of the Clinton Combination Clarinet Company.