Original Associated Press wire photo dated September 25, 1947, showing Dr. William W. Hansen of Stanford University with William Kennedy and Richard Post operating the controls of an electron linear accelerator. The caption reports that the machine produced electrons of more than 1,500,000 volts. The original AP caption is printed directly on the photograph. The photo is mounted on black archival paper and measures approximately 7¾ × 10½ inches overall. Shows tape at the corners and light handling wear consistent with newsroom and archival use. This photograph came from the archive of a Pittsburgh area newspaper. Please review pictures carefully for condition and details.
