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Gatun Spillway looking north, April, 1910
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
1910
Hydraulic Excavation, Miraflores
Dredging Barges. December, 21, 1910.
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
1910
Gatun Spillway
General view from East Wall North of Bridge, Nov.27, 1912
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
1912