![]() | Operation of Gatun Locks. U.S.S. "Wisconsin" in upper-east chamber. Looking north. Jy. 16, 1915. Auteur(s) : Hallen, Ernest | Partager |
![]() | Old French Decauville Engine near Frijoles ; 204-C - Old French Decauville Engine near Frijoles. - Oct., 1908 Auteur(s) : Hallen, Ernest ( Photographer ) | Partager |
![]() | 519-01 - Gatun Lower Locks. General View from East Bank. Looking North. May 1, 1911. Auteur(s) : Hallen, Ernest | Partager |
![]() | 518-J Side Wall Monoliths Construction. Upper Lock, Gatun. Feb. 1, 1910 Auteur(s) : Hallen, Ernest ( Photographer ) | Partager |
![]() | 130-B- A view in the Hospital Grounds. Colon. Auteur(s) : Hallen, Ernest ( photographer ) | Partager |
![]() | 43-Z191 Dredging Division Activities: View of Gaillard Memorial, with Mrs. Gaillard and Dredging Division employees in foreground. 1-22-28. Auteur(s) : Halle, Ernest ( Photographer ) | Partager |
![]() | 5-B Steamshovel Loading Rock, Culebra Cut, March 1911 Auteur(s) : Hallen, Ernest | Partager |