The Walls of Pedro Miguel Lock, Panama

Cranes at Miraflores Lock, Panama

Joseph Pennell

The Guard-Gate, Gatun Lock, Panama

Joseph Pennell

English War Work: Steel Bars for Shells

Joseph Pennell

Dinner Time, Gatun Lock, Panama

Joseph Pennell

English War Work: Made in Germany, The Great Crane

Joseph Pennell

The Guard Gate, Gatun Lock, Panama

Joseph Pennell

English War Work: The Gantry (A Merchant Shipyard)

Joseph Pennell

English War Work: From othe Tops of the Furnaces

Joseph Pennell

English War Work: The Great Tower, Pig Iron

Joseph Pennell

English War Work: The Old Gun Pit

Joseph Pennell

English War Work: The Old Shipyard

Joseph Pennell

On the Clyde, 1917-1918: The Floor of the Train Ferry

Muirhead Bone