Stopcock from apparatus for nitrous oxide anaesthesia
1880-1920
Face mask
1890-1920
Stopcock from apparatus for nitrous oxide or ethyl chloride anaesthesia
1871-1930
Face mask
1894-1930
Stopcock from apparatus for nitrous oxide anaesthesia
1870-1930
Face mask and stopcock from apparatus for nitrous oxide anaesthesia
1871-1920
Stopcock from nitrous oxide inhaler
1880-1920
Part of stopcock from apparatus
1871-1930
Part of stopcock from anaesthetic apparatus
1866-1919
Stopcock and gas bag for anaesthesia
1871-1930
Face mask and regulator from Hewitt's modification of Clover's Portable Regulating Ether Inhaler"
1877-1920
"Dry" bobbin flowmeter from anaesthetic machine
1937-1950
Face mask and stop-cock for anaesthetic
1866-1919
Stopcock from gas cylinder
1906-1930
Gas bag and connectors from apparatus for anaesthesia
1871-1930