‘Culebra Cut’ historical pictures (exact matches)

The Deepest Section of the Famous 9-Mile Culebra Cut
The Deepest Section of the Famous 9-Mile Culebra Cut
Rock drilling work in the Culebra Cut, Panama Canal
Rock drilling work in the Culebra Cut, Panama Canal
The conquerors: Culebra Cut, Panama Canal
The conquerors: Culebra Cut, Panama Canal
Panama Canal, The Deepest Section of the Famous 9-Mile Culebra Cut
Panama Canal, The Deepest Section of the Famous 9-Mile Culebra Cut