Block instrument (sending/receiving)

Block instrument (sending/receiving) Block instrument (sending/receiving) Block instrument (sending/receiving)

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Block instrument (sending/receiving)
Science Museum Group
© The Board of Trustees of the Science Museum

Block instrument (sending/receiving)
Science Museum Group
© The Board of Trustees of the Science Museum

Block instrument (sending/receiving)
Science Museum Group
© The Board of Trustees of the Science Museum

Block instrument; Caledonian Railway. Tyer's 2-needle (Down/Up Line) F-Type 3-position absolute pegging/non-pegging instrument (with internal bell). Has circular, electroplated/brass line-description plate, bakelite-wedge commutator, electroplated bell-plunger (bottom/RHS), and bakelite release-button in circular aperture (middle/RHS).

Details

Category:
Signalling & Telecommunications
Object Number:
1994-8771
type:
block instrument
credit:
British Rail, Clapham