• Installing switch board 

        Contributor:Colorado Agricultural College
        Date:undated
        One man is working on the wiring of a switchboard. On the wall is a day calendar stating: "Saturday, March 1".
      • Installing switch board 

        Contributor:Colorado Agricultural College
        Date:undated
        One man bent over installing a switch board in an office. Other furnishings include a typewriter, steam radiator, chair, and wire waste basket.