ScientificAmerican1903-11-28.jpg Scientific American 1903-04-18ThumbnailsScientific American 1919-11-29Scientific American 1903-04-18ThumbnailsScientific American 1919-11-29Scientific American 1903-04-18ThumbnailsScientific American 1919-11-29Scientific American 1903-04-18ThumbnailsScientific American 1919-11-29Scientific American 1903-04-18ThumbnailsScientific American 1919-11-29
One hundred ton floating crane at the Navy Yard, Brooklyn. Counterweight compartment; levers for controlling counterweight. Below decks on the pontoon.



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

Restoration by: magscanner