Nicholson
$95
Nicholson "Princo" Sphygmomanometer, C1914
Dimensions
Case length: 7
Circa
1914
Maker
Precision Thermometer
Country of manufacture
North America
Description
Nicholson “Princo” Sphygmomanometer,: Oak box, 8× 2.25× 1.5” which lifts lid to reveal manometer folded in half. Extends with ivorine scale to 300 mm Hg. The reservoir is at the side about 3 x .75. When the tube folds down a valve closes to prevent the loss of mercury[mercury well is empty]. The base contains directions. No cuff, rubber bulb or tubing. All the examples we have come across personally or on the web have lacked these accessories. The small size of the Princo probably accounted for its wide-adoption as blood-pressure measurement device. It cold easily fit in a small doctor’s bag. A link to one of the Princo patents is provided below.
https://patents.google.com/patent/US1093199A
Ask the Dealer
Dealer information
M and R Gordon
Michael and Roberta Gordon have been dealing in medical and dental antiques for more than four decades. They have helped build a number of major private collections and have contributed to the holdings of many museums. They also deal in other scientific and technology related items, including calculating instruments, office machines, patent models and wine-related accessories such as corkscrews. ROBERTA GORDON IS A SKILLED RESTORER WHO CAN HELP YOU WITH ANY INSTRUMENTS AND CASES THAT NEED ATTENTION. Feel free to contact them for details at: [email protected] or 718-541-5974
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