This project was supported in whole or in part by the U.S. Institute of Museum and Library Services under the provisions of the Library Services and Technology Act, administered in California by the State Librarian. Made accessible through a grant from the John Randolph Haynes and Dora Haynes Foundation and Photo Friends.
Photograph caption dated November 11, 1959 reads "Holding a Geiger counter at the left is J. L. Cassingham, administrative head of Computer Measurements Co. of Sylmar, while John Rondau, plant and engineering director, holds a scintillometer for the newly expanded electronics firm." The company is in North Hollywood.
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