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Unidentified photographer
518-Y6 - Gatun Upper Locks. View looking North, showing Progress of Construction on Upper Guard Gates, East Chamber, with Emergency Dam Sill in the foreground. July 28,1911
1911, 28 July
Gelatin silver print
George A. Smathers Libraries, University of Florida
Panama Canal Museum Collection, Resource Identifier: accession number - 2001.023.061.001, System ID: AA00013966:00001
LL/58004
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