Murray's chloroform mask.
Ball
C
C
D000769:Anesthesia, Inhalation / Q000266:history* / Q000295:instrumentation*; D002725:Chloroform / Q000008:administration & dosage / Q000266:history*; D004739:England; D004867:Equipment Design; D049672:History, 19th Century; D006801:Humans; D008397:Masks / Q000266:history*; D009609:Nitrous Oxide / Q000008:administration & dosage / Q000266:history
D002725:Chloroform; D009609:Nitrous Oxide