Technical description: Boxwood, with brass keys and ivory ferrules. Five pieces: mouthpiece, barrel, upper section, lower section, bell. Barrel: of modern shape, bulbous with ridged ferrules, barrel shallow for modern-type mouthpiece. Upper section: speaker liner projects c 4mm into bore; shake key has guide pillars on plate below key-head; throat A? key has curved touch. Lower section: ferrule of unusual angular profile; no thumb rest; rollers on R4 keys. Bell continuous, with ivory rim. L0: T; straight speaker. L1: T; straight throat A?; short throat A?. L2: T. L3: T; cross E?4/B?5. L4: cross C?4/G?5; straight bascule E3/B?4; straight F?3/C?5. R1: T; side F4/C6; side E?4/B?5; side trill key for throat A-B? and B?-C. R2: T;, R3: T; cross B?3/F?5; side B?3/F?5. R4: open hinge key for F3/C5; G?3/E?5. Keymount type: pillars on screwed-down base plates; open-standing C? key mounted on oval brass plate 49mm long with hinge let into wood, secured by three woodscrews. Keyhead type: saltspoon. Repair History: Touches of L4 keys have been lengthened or repaired.