Bellamy Gardner's open ether mask.
Ball
C
C
D000769:Anesthesia, Inhalation / Q000266:history* / Q000295:instrumentation; D000776:Anesthesiology / Q000193:education / Q000266:history / Q000295:instrumentation; D018685:Anesthetics, Inhalation / Q000008:administration & dosage / Q000266:history*; D004739:England; D004867:Equipment Design; D004986:Ether / Q000008:administration & dosage / Q000266:history*; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans
D018685:Anesthetics, Inhalation; D004986:Ether