Telegraph block instrument

Telegraph block instrument

Buy this image as a print 

Buy

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

License

Telegraph block instrument
Science Museum Group
© The Board of Trustees of the Science Museum

Telegraph block instrument; Midland Railway Langdon 3 position sending type. GER pegging/non-pegging 2-needle 2-position/2-indication absolute with a vertically-mounted large brass flap (painted black on one side and green on the other). A small brass red "Train on Line" reminder-flap is also attached covering either one red brass plunger (LHS) or one brass white plunger (RHS). Case stamped "MR Co".

Details

Category:
Signalling & Telecommunications
Object Number:
1994-7271
type:
telegraph instrument