• D.C. Lab - Electrical Engineering 

        Author(s):Colorado Agricultural College
        Date:1930-03-26
        Three kneeling men are flipping switches below a wall panel of light bulbs. Another man is standing close to the light panel. Two other men are working at a table near the far wall in background.
      • D.C. Lab - Electrical Engineering 

        Author(s):Colorado Agricultural College
        Date:1930-03-26
        Four men seated at tables working on electrical projects. Several other men are in background near a glass front cabinet.
      • D.C. Lab - Electrical Engineering 

        Author(s):Colorado Agricultural College
        Date:1930-03-26
        Four men seated at tables are working on electrical projects. Two men are standing near a light bulb panel on back left wall.
      • D.C. Lab - Electrical Engineering 

        Author(s):Colorado Agricultural College
        Date:1930-03-26
        Two men working at an electric panel. One is handling a switch and the other is holding an electrical cable.