Assembling Lye Bars at Intersection of Vertical Post and Diagonals Ready for Pinning. Driving Home a 14-Inch by 5-Foot Steel Pin at InterSeaton. Mare Island Operator Performs Feat of Wireless Telegraphy. View Looking Along Upper Floor of Bridge ; Shows the Hain Trusses Lateral Bracing and Floor Beams. ERECTING THE GREAT CANTILEVER BRIDGE ACROSS THE EAST RIVER AT BLACKWELL'S ISLAND., scientific american, 1907-08-10
Assembling Lye Bars at Intersection of Vertical Post and Diagonals Ready for Pinning. Driving Home a 14-Inch by 5-Foot Steel Pin at InterSeaton. Mare Island Operator Performs Feat of Wireless Telegraphy. View Looking Along Upper Floor of Bridge ; Shows the Hain Trusses Lateral Bracing and Floor Beams. ERECTING THE GREAT CANTILEVER BRIDGE ACROSS THE EAST RIVER AT BLACKWELL'S ISLAND., scientific american, 1907-08-10
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