Rare vintage Heartometer Medical Instrument mint condition Collectors
Showroom condition never used or unpacked all original down to Chalk Dust on Rubber & Pencil ! Vintage "Cameron Model 8-6100 Heartometer" from the 60's 70's ? What is this ? Cameron Heartometer. This diagnostic device was used to measure and graph a patient's blood pressure, heart rate and well as an early attempt to measure the patients heart-beat wave similar to what a modern EKG does. “The Cameron Heartometer. Invented in 1937, it was one of the first medical instruments to take measurements