Trumpet, Cornopean or Keyed Bugle Mouthpiece
Catalogue number: 13.2
Original name: Trumpet, cornopean or keyed bugle mouthpiece. Un-plated, silvered rim. Early-mid 19th Century.
Overall length: 77mm.
Inner rim diameter: 15.7mm.
Rim width: 6.3mm.
Depth of cup: 14.6mm.
Throat diameter: 5.6mm tapering to 4mm.
Inside shank diameter: End of shank bent inwards around the circumference, making a measurement of diameter impossible.
Illustration references: See below.