Manometer from early example of Gaertner sphygmomanometer (tonometer), German, 1801-1900 Manometer from early example of Gaertner sphygmomanometer (tonometer) 1801-1900
Tonometer (sphygmomanometer) with aneroid manometer, tubing, bellows and arm-cuff in brown plastic case, type invented by Dr. H. Von Recklinghausen, German, 1920-1940 Tonometer (sphygmomanometer) with aneroid manometer
Recklinghausen's sphygmomanometer by Bosch and Speidel, in case, c1900, German Recklinghausen's sphygmomanometer by Bosch and Speidel 1896-1905
Sphygmomanometer, cased, by Hawksley and Son, 357 Oxford Street, London, England. Sphygmomanometer, cased, by Hawksley and Son
Sphygmomanometer by Surgical Instrument Co., in case, English Sphygmomanometer by Surgical Instrument Co.
Greenhill's cerebro-spinal manometer, with case, English, 1860-1930 Greenhill's cerebro-spinal manometer 1860-1930
Gaertner sphygmomanometer by Schulmeister, in case, Austrian Gaertner sphygmomanometer by Schulmeister
Glass manometer on wooden stand, European, first half of the 19th century Glass manometer on wooden stand 1801-1850
Sphygmomanometer, in case, by Hawskley and Sons, 357 Oxford Street, London, England, 1901-1950. Sphygmomanometer, in case 1901-1950
Sphygmomanometer, ex Cuthbert Coll., in case, by Allen and Hanburys, 48 Wigmore Street, London, England. Sphygmomanometer, ex Cuthbert Coll.
Sphygmomanometer by Holborn Surgical Instrument Co. Ltd., English, 1913-1950 Sphygmomanometer by Holborn Surgical Instrument Co. Ltd. 1913-1930
Mercury sphygmomanometer, manometer only, in wooden case, by Hawkesley and Son, 357 Oxford Street, London, England, 1890-1930. Mercury sphygmomanometer 1890-1930
Sphygmomanometer by Hawksley and Sons Limited, 357 Oxford Street, London, England. Sphygmomanometer by Hawksley and Sons Limited