• A.C. Lab - Electrical Engineering 

        Contributor:Colorado Agricultural College
        Date:1930-03-27
        Six young men are at various stations, performing various tasks in a laboratory setting.
      • A.C. Lab - Electrical Engineering 

        Contributor:Colorado Agricultural College
        Date:1930-03-27
        Two young men are working switches on a big electrical board. A third young man, in the background, is reading papers he holds in his right hand.
      • A.C. Lab - Electrical Engineering 

        Contributor:Colorado Agricultural College
        Date:1930-03-27
        Two young men are examining a machine in the center of the picture. A third young man is examining a separate machine to the left of the picture.
      • A.C. Lab - Electrical Engineering 

        Contributor:Colorado Agricultural College
        Date:1930-03-27
        The young man on the right is reading the output of a machine, while a young man, on the left, records the reading in a notebook.