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Fire Clay Cone Temperature Indicator, 1928-1931
- Made:
- 1928-1931 in Stoke-on-Trent
- maker:
- Wengers Ltd.
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Standard cone, used: 017 (-750°C) in single cone socket, by Wengers Ltd., Stoke-on-Trent, England, 1928-31.
Standard cone, used: 017 (-750°C) in single cone socket, by Wengers Ltd., Stoke-on-Trent, England, 1928-31.