Lot of original 2.5 x 3.5 inch black and white snapshot photographs dated August 1940, showing a Caterpillar crawler tractor working on a government dam construction project in North Dakota. At that time, small-scale dam work and soil conservation initiatives were underway across the state through state agencies and federal programs like the WPA and related watershed efforts. The reverse of the photos includes handwritten identification tying the machine and date to the project, making these valuable documented examples of early 20th century civil works and heavy equipment in action.

Original vintage photos — not reproductions — with age-appropriate wear.

• Government dam construction project

• Civil works/earthmoving in North Dakota, August 1940

• Equipment likely used in state or federally supported conservation or flood control work