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Photograph

U.S. National Park Ranger Jim Mack and Fresnel Lens

Date: 07 21 1985
Description: Portrait of a uniformed man leaning on a large lighthouse lens. Caption reads: "US National Park Ranger Jim Mack (above), leaning on a giant fresnel lens t...
Photograph

Gatun Lighthouse and Locks

Date: 03 1913
Description: An unidentified man in light-colored uniform, on the far left just behind a column, is standing atop the near side of the Gatun Locks near Colon, Panama. O...

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