Sphygmomanometer, steel and glass, with rubber tubing, Von Basch type, in leatherette case, early 20th century Sphygmomanometer, steel and glass 1901-1930
Gaertner tonometer (sphygmomanometer), with accessories, in case, by Ludwig Schulmeister, Spitalgasse 5, Vienna, Austria, 1881-1900. Gaertner tonometer (sphygmomanometer) 1881-1900
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
Sphygmomanometer, in leather case, Alsa model, by Aries, Italian, 1920-1940 Sphygmomanometer, in leather case 1920-1940
Recklinghausen's sphygmomanometer by Bosch and Speidel, in case, c1900, German Recklinghausen's sphygmomanometer by Bosch and Speidel 1896-1905
Part of a Riva-Rocci sphygmomanometer, by Zambelli, in case, Italian Part of a Riva-Rocci sphygmomanometer, by Zambelli, in case.