Physiological Mercury Thermometer, 1876

1876

Ear Mercury Thermometer, 1876

1876

Physiological Mercury Thermometer, 1876

1876

Mercury thermometer for readings from -6 deg C to 104 deg C

1890

Ear and Skin Thermometer, 1876

1876

Set of eight mercury thermometers in morocco leather case -30º to 360º

1876

Toluene thermometer

1890

Mercury thermometer

1860