Early Platinum Electrical Resistance Thermometer, 1871-1890
- Made:
- 1871-1890
Early form of platinum thermometer, one of nine, with double glass tube, plastic stopper and four wire terminals, unsigned, 1871-1890.
Details
- Category:
- Heat
- Object Number:
- 1930-363 Pt4
- Materials:
- glass, mica, copper (metal), plastic (unidentified), plastic (vulcanised rubber?) and bitumen
- Measurements:
-
overall: 15 mm x 460 mm x 25 mm, , .065kg