Tenor rothphone, sarrusophone in B flat. Brass body with silver plating. Keys have leather pads. In appearance like an elongated and narrow-tubed saxophone, and with similar mechanism, to low B. Two thumb octave keys, keys for high D and D-sharp. Crook and part of crook receiver missing. Stamped inscription on bell, which is accompanied by two crest/shield emblems: BREVETTO/BOTTALI/PRIMARIA/PREMIATA FABBRICA/FERD & ROTH/MILANO/MASSIME ONORIFIC../ESPOSIZni MONDIAL/47
The rothphone, which is sometimes referred to as rothophone or saxarrusophone, is a version of the sarrusophone that is built in the shape of a saxophone. It was first marketed in Milan by the instrument maker Ferdinando Roth around the end of the 19th century. The tone resembles that of a saxophone but is slightly less round, as the bore is narrower and has a less conical profile.