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    The Cathedral Plaza, Panama, circa 1910

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

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    Lidgerwood Unloader - 14% Grade - Tabernilla Dumps

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

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    Cucaracha Slide, North End. From West Bank

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

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    Bottom of the Canal

    Raised for a short distance through pressure of the broken east Bank 18 feet above its original level, June, 1910.

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

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    Culebra Cut

    Looking north, December, 1904.

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

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    Miraflores Upper Locks, Looking South, Construction of East Side Wall, Showing Culvert, November 10, 1910

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

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    Pedro Miguel Lock, The West Chamber, Looking North, November 11, 1910

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

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    Pedro Miguel Lock, Looking South from Forebay, November 9, 1910

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

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    Pedro Miguel Lock. Concrete Mixers, Loading Concrete in Buckets. November, 1910

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

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    Slide of Stratified Rock, West Bank of Canal, Culebra-on-the-Dump

    Slide involved about 900,000 cu. yds., and moved about 3 feet per day on a slope of one vertical to ten horizontal. View looking towards Culebra.

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

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    Culebra Cut, Empire. Break in East Bank at La Pita, taking in Pbispo Diversion Channel

    Amount of material involved about 300,000 cu. yds. View looking north. August 21, 1912.

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

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    Miraflores lower locks, General view from Berm Crane on east bank

    Looking north. August 10, 1912.

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

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    Gatun Upper Locks. Miter gate moving machine

    Structural steel girders for towing locomotive track supports in foreground. June, 1912.

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

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    Gatun Upper Locks

    View looking south, showing west forebay and south center approach wall. June 1, 1912.

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

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    Culebra Cut, Culebra

    Looking North, from West Bank, South of Contractor's Hill. The lowest steamshovel cut is about 16 ft. above the final bottom of the canal. June,

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

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    Pedro Miguel Locks. East Chamber

    Looking South from forebay. Upper Guard Gates in Foreground. June 4, 1912.

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

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    Unnamed picture of a small town on a hillside overlooking the ocean, apparently near one end of canal

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

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    Culebra Cut, Culebra. View looking South, from East Bank, Showing Terraces formed in removing superimposed weight from top bank of Canal

    The train in the middle of picture is about El+250. The shovel on extreme left in bottom is at El+65. June, 1912.

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

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    Gatun Lower Locks. East Chamber

    Looking South from Coffer Dam, Middle and Upper Locks in Distance. January 31, 1912.

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

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    Gatun Spillway

    General view from East Wall North of Bridge, Nov.27, 1912

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

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    Mindi Excavation

    View looking North from East Bank, Atlantic entrance in the distance. Jan. 7, 1912

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

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    The Cut at Bas Obispo during the Flood of Nov.19, 1909

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

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    Blowing up of Gamboa dike, Panama Canal, October 10, 1913

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

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    General View of Ancon Hill and Quarry from Sosa Hill. June 7, 1912

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

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    Miraflores Lower Locks

    Looking north, showing upper locks in the distance. Jan. 4, 1913.

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