English: Example of the original construction 53 lb/yd inverted "U" rail, "screw" spike, and lignum-vitae hardwood tie used to build the Panama Railroad from 1851 to 1855. (The Cooper Collections)
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2008-06-06 00:26 Centpacrr 560×511×8 (74948 bytes) Example of the original construction inverted "U" rail, "screw" spike, and [[lignum-vitae]] hardwood tie used to build the Panama Railroad from 1951 to 1855. (The Cooper Collections)
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{{BotMoveToCommons|en.wikipedia}} {{Information |Description={{en|Example of the original construction 53lb inverted "U" rail, "screw" spike, and lignum-vitae hardwood tie used to build the Panama Railroad from 1951 to 1855. (''The C