Keywords: FMIB 33054 Concrete Arches, Showing Culvert 18 Feet in Diameter.jpeg Concrete Arches Showing Culvert 18 Feet in Diameter Pedro Miguel Locks Panama Canal Subject Panama Canal Panama Locks Hydraulic engineering Geographic Subject Panama Tag Panama Canal 1912 Cite book Concrete Arches Showing Culvert 18 Feet in Diameter Pedro Miguel Locks Panama Canal Mendville PA Keystone View Company 1912 No 21711 author PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 33054 Images from the Freshwater and Marine Image Bank to check Pedro Miguel Locks Construction of the Panama Canal Panama Canal Zone in the 1910s Stereo cards of Panama Keystone View Company stereo cards |