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    Operation of Gatun Locks

    Dredging fleet entering upper lock, west chamber. Looking north. Water 45 ft above sea level. Oct. 9, 1913.

    Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)

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    Operation of Gatun Locks

    Dredging fleet. Suction dredge entering lower lock, west chamber. Looking north. Oct. 9, 1913.

    Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)

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    Operation of Gatun Locks

    Looking north from north gates, showing lower guard gates in foreground. Dredging fleet in the distance and Atlantic entrance to canal, October 9

    Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)

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    Operation of Gatun Locks

    Opening the lower guard gates. View looking south from forebay. Sept. 26, 1913.

    Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)

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    Gatun Locks

    Looking south form light house on west wall, showing water in west chamber of upper lock. Lake in distance. Oct. 27, 1913.

    Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)

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    Gatun Spillway Dam

    Lower side of gates, looking upstream, July 12, 1913.

    Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)

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    Panama, R.R Dock, Cristobal

    View of new Pier #8, looking southeast. Steel framework for reinforced concrete and shed complete. August 19, 1913.

    Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)

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    Washington Hotel, Colon R.P

    Close view of main entrance, 1913.

    Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)

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    Culebra Cut, Culebra

    Blasting a channel through Cucaracha slide. Looking North, October 16, 1913.

    Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)

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    Culebra Cut at Empire

    Looking North from Division Engineer's Office. June 4, 1910.

    Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)