Early Platinum Electrical Resistance Thermometer, 1871-1890
- Made:
- 1871-1890
Early form of platinum thermometer, one of nine, glass tube and rubber stopper, unsigned, 1871-1890.
Details
- Category:
- Heat
- Object Number:
- 1930-363 Pt1
- Materials:
- glass, rubber (unidentified), platinum (metal), cotton thread and bitumen
- Measurements:
-
overall: x 265 mm x , 30 mm, .04kg
- credit:
- Callendar, Mrs.