

Hortvet cryoscope thermometer (mercury-in-glass) no.82272 by Baird and Tatlock (London) Ltd., calibrated -2 to +1 degree centigrade by 0.01 degree centigrade, in wooden tube
Hortvet cryoscope thermometer (mercury-in-glass) no.82272 by Baird and Tatlock (London) Ltd., calibrated -2 to +1 degree centigrade by 0.01 degree centigrade, in wooden tube