ScientificAmerican1903-07-11.jpg ThumbnailsScientific American 1916-09-30ThumbnailsScientific American 1916-09-30ThumbnailsScientific American 1916-09-30ThumbnailsScientific American 1916-09-30ThumbnailsScientific American 1916-09-30
5000 ton floating depositing pontoon dock. In the water for painting, showing its self-lifting capacity. Ship raised on pontoon, ready for transference to gridiron to the left.



Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner