Group photograph of the attendees of the American Astronomical Society meeting, Mount Wilson Observatory. The group is standing in front of the 100-inch telescope observatory building. The individuals in the group are unidentified. The men are wearing suits, and the women are wearing dresses; some people are wearing hats. The observatory building behind them has an open ground-level door; a metal staircase is seen along the side of the building, at the far left. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
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