Group photograph of six (6) employees of the Mount Wilson Observatory optical laboratory at Santa Barbara Street, Pasadena. Two of the employees are women; one is wearing a long skirt and blouse, the other a dress. Three of the four men are wearing suits and neckties; the fourth man is wearing pants, a shirt and a necktie. The group is standing in front of a white brick wall, presumably the exterior wall of the laboratory. A large piece of corrugated sheet metal is on the ground behind them. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
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