Guests at the dedication of the 60-inch telescope, Palomar Observatory. The guests are seated in the Oscar G. Mayer Jr. memorial building which houses the telescope. The guests are listening to a guest speaker at the even. The ladder leading to the observatory's interior balcony is seen at the far left, in front of the guests. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
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