Tunnels 16 and 17, from Tunnel 18
Tunnels 16 and 17, from Tunnel 18, looking down the incline; at 7 3/4 miles
Picture No
10510677
Media ID
46040661
Size
4783px x 3848px
(3.6MB)
Credit
The Institution of Mechanical Engineers / Mary Evans
Source
Tredwell Family
Date
1856





























