Manometer, used in Cardiac Department, during Valsava Manoeuvre Manometer, used in Cardiac Department
Manometer from early example of Gaertner sphygmomanometer (tonometer), German, 1801-1900 Manometer from early example of Gaertner sphygmomanometer (tonometer) 1801-1900
Manometer, with pieces of rubber tubing and two stopcocks, by Verdin and Boulitte, French Manometer, with pieces of rubber tubing and two stopcocks
Manometer on graduated wooden stand, by Griffin and George Ltd., London Manometer on graduated wooden stand 1954-1980
Manometer, incomplete, consisting of pressure gauge and syringe, glass and metal, used with intestinal biopsy apparatus, pressure gauge made by Chas. Thackray Ltd., Leeds and London, 1950-1960 Manometer, incomplete 1950-1960
Mercury manometer, crudely made, probably used in cardiology research, probably part of Waller collection, English, 180-1920 Mercury manometer 1880-1920
Greenhill's cerebro-spinal manometer, with case, English, 1860-1930 Greenhill's cerebro-spinal manometer 1860-1930
Glass manometer on wooden stand, European, first half of the 19th century Glass manometer on wooden stand 1801-1850
Hansen's universal manometer, metal, with book of directions and trace, made by O. Dich and Kaiser' s Laboratory Ltd., Copenhagen, Denmark, 1946-1950 Hansen's universal manometer 1946-1950
Glass manometer on wood stand,from St.Georges Hosptia, London, early 20th century Glass manometer on wood stand 1900-1940