Pendulum hardness tester, British Rail
- Made:
- 1905-1910 in Manchester
- maker:
- Edward G Herbert Limited
Pendulum hardness tester, Herbert's, cased, by Edward G. Herbert, Manchester, c.1910, from BR Materials Engineering Group Laboratories, Derby.
Pendulum hardness tester, Herbert's, cased, by Edward G. Herbert, Manchester, c.1910, from BR Materials Engineering Group Laboratories, Derby.