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Field comparisons of bars with standard, made every morning. Side of Y...
Public domain photograph by Carleton Watkins, 19th-century photography, free to use, no copyright restrictions image - Picryl description Carleton Watkins was an American photographer, born in 1829 in Oneonta,... More
Measuring across one of the Dry sloughts. Trestle 115 feet long. 22 fe...
Picryl description: Public domain image of a bridge, water, historic structure, free to use, no copyright restrictions.
Yolo Buggy at S.E. Base at close of second measurement / The 35 feet b...
Public domain image of personnel, army, group of people in uniform, parade, historic place, military activity, free to use, no copyright restrictions - Picryl description
Movable tent or Yolo Buggy (51 feet long, under which all measurements...
Public domain photograph by Carleton Watkins, 19th-century photography, free to use, no copyright restrictions image - Picryl description Carleton Watkins was an American photographer, born in 1829 in Oneonta,... More