Retirement ceremony in honor of Edward K. Rishel, chemist at the Naval Air Engineering Center's Aeromaterials Laboratory. Rishel (center left) holds a certificate reading "Honorably Retired as a Civilian Employee of the U.S. Naval Air Development Center." The individuals in the photograph are identified as follows (from left): Charles A. Cassola (Head, High Polymer Division); Edward K. Rishel (Chemist, retiring); CDR Robert L. Abbott (Laboratory Director); and J. Hartley Bowen, Jr. (Technical Director).
Naval Air Engineering Center (U.S.), and United States. Navy. “Retirement Ceremony in Honor of Edward K. Rishel,” April 22, 1968. Photographs from the Papers of J. Hartley Bowen, Box 1. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/xk81jk434.
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