The physician's pulse watch.
Bause
George S
GS
ASA's Wood Library-Museum of Anesthesiology, Park Ridge, Illinois, USA. UJYC@aol.com
D006339:Heart Rate / Q000502:physiology; D049670:History, 17th Century; D049671:History, 18th Century; D006801:Humans; D011674:Pulse / Q000266:history* / Q000295:instrumentation; D012014:Reference Books, Medical; D006113:United Kingdom