Construction of Blackwall Tunnel
BLACKWALL TUNNEL Interior of the tunnel during construction. The boring was made by steel shields driven by compressed air and the water was kept back from the face of the working by air-pressure
Picture No
13837084
Media ID
45806763
Size
5810px x 3965px
(4.0MB)
Credit
Mary Evans Picture Library
Source
Photograph in The Queen's Empire', volume 4, page 182
Date
1896 - 1897
