Workmen single-jack a spike into a railroad tie near a pipe laying project at South Lipan Street in Denver, Colorado. A crane with a clamshell attachment is on the tracks nearby. The side of the crane reads: "The Dennis Gibbons Construction Co....
Denver (Colo.)--1900-1910.; Construction workers--Colorado--Denver--1900-1910.; Hoisting machinery--Colorado--Denver--1900-1910.; Railroad maintenance & repair--Colorado--Denver--1900-1910.
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