Certificate for mercury thermometer (see 1895-38/1), supplied by the Bureau International des Poids et Mesures, Sèvres, France, 1896. Certificate for Standard Mercury Thermometer, 1896
Negretti and Zambra patent thermometer by Isaiah Deck of Cambridge, 1870-1920 Negretti and Zambra patent thermometer by Isaiah Deck of Cambridge
Miniature platinum resistance thermometer, one of three, by Rosemount Engineering Company Limited, E10-005, 80 PF 4F, E13050, Minneapolis, Minnesota, United States c.1978. Three minature platinum resistance thermometers, 20th century.
Four glass plates (each 3 1/2 inches square) bearing infra-red reflection films Four glass plates bearing infra-red reflection films