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Aneroid sphygmomanometer, by Allen and Hanburys, 4
Aneroid sphygmomanometer, by Allen and Hanburys, 48 Wigmore Street, London, England, which belonged to Dr. Pringle (probably) manometer only.
Aneroid manometer, from syhygmomanometer
Aneroid manometer, from syhygmomanometer, by Surgical Manufacturing Co. Ltd., 85 Mortimer Street, London, W, England.
Aneroid manometer from sphygmomanometer
Aneroid manometer from sphygmomanometer by Holborn Surgical Instrument Co., English