Photograph of the new $1 million research and development laboratory of Electro-Optical Systems, Inc. "New $1 million research and development laboratory of Electro-Optical Systems, Inc., in Pasadena, will serve as corporate headquarters as well as house three of the company's technical divisions. Completely air conditioned, the laboratory covers 50,000 square feet and contains a wide range of novel environmental test equipment and other specialized instrumentation for advanced research and development programs. Electro-Optical Systems, Inc. 125 North Vinedo Avenue Pasadena, California" -- typed note attached to verso, dated, "March 22, 1960". "Another - Kelly's Industrial Photo Service Inc. Photograph 3868 1/2 So. Western RE public 4-4989 Los Angeles 62, California to reorder - ask for #12507" -- stamped on verso.; Streetscape. Horizontal photography.