As early as the 19th century, venous pressure was used in the diagnoses and assessment of congestive heart failure. Leamon’s apparatus was introduced between the wars, a time when the diagnostic importance of venous pressure was beginning to be more widely understood and measured clinically. The presence of mimeographed rather than printed instructions and a catalog cut might indicate that this was an early model used within the company by Pilling.
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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