Telegraph block instrument (sending/receiving)
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LicenseThis image is released under a CC BY-NC-SA 4.0
Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseThis image is released under a CC BY-NC-SA 4.0
Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseTelegraph block instrument (sending/receiving)
Science Museum Group
© The Board of Trustees of the Science Museum
Telegraph block instrument (sending/receiving)
Science Museum Group
© The Board of Trustees of the Science Museum
Telegraph block instrument (sending/receiving)
Science Museum Group
© The Board of Trustees of the Science Museum
Telegraph block instrument; GWR; Spagnoletti sending and receiving "special" type. 2-vane absolute 3-position/2-indication Up/Down Line receiving/sending. Circular bakelite commutator, directly above of which is a rectangular brass "Treadle Cleared" window and a circular brass "Tol/Normal/Lc" window. To LHS is a brass peg/chain (missing chain) mechanism for "Receive Release/Normal", and its counting-window. Ivorine-plated "Carmarthen Station Box".
