Photograph of workers loading aggregate into a cement mixer for street construction, [s.d.]. At center, two workers move have backed the bed of a pickup truck to a cement mixer at left. Each man has a
Photograph of a view of a man putting a roof on a house, [s.d.]. The incomplete brick and wood structure can be seen in the foreground at right. A man is visible on the roof as he nails shingles in pl
