A view Through The Locks Of The Panama Canal 1912.

A view through the lock gates of the panama canal zone, during construction, before the gates were placed. If you look closely at the central trackway, in the centre of the picture, you can see a figure walking down the canal bed. This gives a good idea of the original size and depth of the canal.

Looking through the locks before the gates were placed, Panama Canal Zone by F.R. Roberson 1912