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Hydraulic Excavation, Miraflores
Dredging Barges. December, 21, 1910.
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
1910
Gatun Upper Locks
Looking north from lightouse on center wall. March. 9th, 1913
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
1913