The three Mayer brothers standing next to the dedication plaque for the Oscar G. Mayer memorial building at Palomar Observatory, in honor of the dedication of the 60-inch telescope. The man in the center is Oscar G. Mayer Jr. The three men are wearing suits, coats 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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