Street of unknown town in Panama, all dug up
Handy (Photographe), Hallen (Photographe), Special Collections/University Archives (Compagnie de publication)
Graphical representation of yardage, Panama Canal, July 1, 1913
Handy (Photographe), Hallen (Photographe), Special Collections/University Archives (Compagnie de publication)
Geological cross-sections of Culebra Cut, showing sliding ground
Handy (Photographe), Hallen (Photographe), Special Collections/University Archives (Compagnie de publication)
Isthmian Canal Commission - Atlantic Division general map: Gatun Locks and Dam
Handy (Photographe), Hallen (Photographe), Special Collections/University Archives (Compagnie de publication)
Isthmian Canal Commission, Pacific Division, Pedro Miguel to Panama Bay, (map of west end of canal, and Excavation Diagram)
Handy (Photographe), Hallen (Photographe), Special Collections/University Archives (Compagnie de publication)
Isthmian Canal Commission - Atlantic Division Sections of Gatun Dam
Handy (Photographe), Hallen (Photographe), Special Collections/University Archives (Compagnie de publication)
Tropical Foliage near Bohio
Handy (Photographe), Hallen (Photographe), Special Collections/University Archives (Compagnie de publication)
Blast at Bas Obispo, Sept. 19, 1907 (1/3)
"Powder used, 9,600lbs., Rock displaced 29,640 cu. yds. 72 on one side, 106 1/2 on the other. "
Handy (Photographe), Hallen (Photographe), Special Collections/University Archives (Compagnie de publication)
Blast at Bas Obispo, Sept. 19, 1907 (2/3)
"Powder used, 9,600lbs., Rock displaced 29,640 cu. yds. 72 on one side, 106 1/2 on the other. "
Handy (Photographe), Hallen (Photographe), Special Collections/University Archives (Compagnie de publication)
Blast at Bas Obispo, Sept. 19, 1907 (3/3)
"Powder used, 9,600lbs., Rock displaced 29,640 cu. yds. 72 on one side, 106 1/2 on the other. "
Handy (Photographe), Hallen (Photographe), Special Collections/University Archives (Compagnie de publication)