Mrs. Bruce H. Rule, Bruce H. Rule, Mary Sandage and Allan Sandage (left to right), standing outside the Oscar G. Mayer memorial building, Palomar Observatory, at the dedication of the 60-inch telescope. The dedicatory plaque is seen between the two couples on the building's exterior wall. Mrs. Rule stands at the far left, and is wearing a dark coat over her dress. Mary Sandage is third from left, and is wearing a pant suit. Both of the men are wearing suits and neckties. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
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