'Pyromite' Extinction Pyrometer (Optical Temperature Indicator), 1913-1958
- Materials:
- glass , brass (copper, zinc alloy) , bakelite and nickel plated
- Object Number:
- 1958-236 Pt1
- type:
- pyrometer (optical) and thermometer
Heathcote's extinction pyrometer (or pyromike) No. 122, made by W. & J. George Ltd., Birmingham, 20th century.