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Old French Ladder dredge, August 7th, 1907
"Some boats with modified coal dredges."
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
1907
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)
1912
Gamboa Dyke
Looking north from east bank, showing north end of Culebra cut and canal channel in the distance, Sept. 24, 1913
Handy (Photographer), Hallen (Photographer), Special Collections/University Archives (Publisher)
1913