Technical description: Brass. Unused. Valve type: 3 Stölzel valves with compression spring inside hollow stem; alignment by screwed pin through slots in stem, this pin also serving to locate fixed end of spring. Metal partitions.
General usage of type: Probably sold for assembly of new instruments or repair work.
Arnold Myers; R.Parks 31.5.93.
Formerly stock of Messrs J. and R. Glen.; on loan to the Collection.