Keywords: Philadelphia Naval Shipyard view in 1921.jpg View northeast from the 350-ton crane of the Philadelphia Naval Shipyard League Island Pennsylvania USA Drydock no 1 is at center This is the original timber drydock constructed 1889-1891 under the supervision of Robert E Perry explorer of the north pole The riggers/sign shop building no 25 is above the drydock Built in 1904 it is an example of renaissance revival industrial architecture at the time the photograph was taken it was used for a sheet metal tool and inside shipfitters shop U S Historic American Engineering Record U S Library of Congress Prints and Photographs http //www loc gov/pictures/collection/hh/item/pa3416 photos 359955p/ HAER PA 51-PHILA 709--7 1921-09-23 Replogle photographer U S Navy photograph NBP-PNSY CSF-3589-12-64 HAER PA 51-PHILA 709--7 Philadelphia Naval Shipyard |