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Title: Sand timer, 30 seconds, for use with clinical thermometers o [Go to resource]
Description: Sand timer, 30 seconds, for use with clinical thermometers or for taking pulse, 1920-1960 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: timers Temporal: 1920-1960 Source: Science Museum Identifier: 1982-185/40 Go to resource More Like this...-
Clinical Fahrenheit thermometer, European, 1801-1920Clinical Fahrenheit thermometer, European, 1801-1920
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