Telegraph block instrument, Midland Railway
- Made:
- 1911
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LicenseThis image is released under a CC BY-NC-SA 4.0
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Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseTelegraph block instrument, Midland Railway
Science Museum Group
© The Board of Trustees of the Science Museum
Telegraph block instrument, Midland Railway
Science Museum Group
© The Board of Trustees of the Science Museum
Telegraph block instrument; Midland Railway. 1-needle 3-position absolute pegging rotary instrument with rotary bakelite-handled commutator and 3 Cancel-Buttons (Line Clear/Train On Line/BBI) plus circular illuminated bulb (middle RHS). Dated 1911; Sykes Maker?
