English War Work: The Old Gun Pit

On the Clyde, 1917-1918: Lifting an Oil Tank into a Train Ferry

Muirhead Bone

English War Work: Made in Germany, The Great Crane

Joseph Pennell

The Walls of Pedro Miguel Lock, Panama

Joseph Pennell

English War Work: The New Gun Pit

Joseph Pennell

English War Work: Cutting and Turning a Big Gun

Joseph Pennell

The Guard Gate, Gatun Lock, Panama

Joseph Pennell

English War Work: The Great Tower, Pig Iron

Joseph Pennell

English War Work: Taking the Big Gun Away

Joseph Pennell

English War Work: The Big Gate of the Big Shop

Joseph Pennell

The Guard-Gate, Gatun Lock, Panama

Joseph Pennell

English War Work: Steel Bars for Shells

Joseph Pennell

English War Work: Bottling the Big Shell

Joseph Pennell