Face mask
1890-1920
Face mask from Junker's inhaler for chloroform anaesthesia
1870-1920
Face mask from anaesthetic apparatus
1906-1940
Face mask from Clover's "Portable Regulating Ether Inhaler"
1877-1920
Face mask
1894-1930
Face mask from Ormesby's inhaler for ether anaesthesia
1877-1920
Coates' modification of Snow's inhaler for chloroform anaesthesia
1854-1880