"The face-piece is a cone-shaped wire cage, covered externally with leather, and leading into a soft leather bag, ...." There is a tube extending from the cushioned rim through which ether can be administered; there is a valve on the side of the cone.
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Is part of: Artificial anaesthesia, a manual of anaesthetic agents ... employment in the treatment of disease, p. 171, pl. 37.; See related catalog record: 66950750R