An engraving depicting Primrose Hill Tunnel
An engraving depicting Primrose Hill Tunnel: London and Birmingham Railway built by the engineer Robert Stephenson. The picture shows elementary signalling by bells, policeman with a flag and early rotating disc on a standard. Dated 19th century
Picture No
13913321
Media ID
48520160
Size
5607px x 3740px
(6.5MB)
Credit
World History Archive / Mary Evans Picture Library
Source
World History Archive
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Bells Disc Elementary Primrose Rotating Signalling Stephenson
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