Serpent;Ophimonocleide
- Place of production:France, Paris, Gisors
- Date of production:first quarter 19th century
- Collection:Bate Collection, Oxford
Ophimonocleide
- Place of production:France
- Date of production:1825–40
- Collection:Royal College of Music Museum
Ophimonocleide. Nominal pitch C
- Place of production:Gisors/France
- Date of production:Circa 1835
- Collection:University of Edinburgh