Subject
Engineering
3
Steam-boilers
2
1846
1
Bridges
1
Britannia Bridge (Wales)
1
Building, Iron and steel
1
Imprints (Smith and Ebbs)
1
Iron
1
Iron and steel bridges
1
Iron industry and trade
1
Machinery
1
Metallurgy
1
Mills and mill-work
1
Naval architecture
1
Railroads
1
Scientists
1
Shipbuilding
1
Ships, Iron and steel
1
Transatlantic cables
1