Assemblage of the 50-foot interferometer mount at Mount Wilson Observatory's facility, Santa Barbara Street, Pasadena, for use at the 1923 Pt. Loma eclipse. A construction worker is seen standing within the steel mount. In the foreground, to the left, a corner of the building and its tile roof is visible. In the background, a house and some trees are visible. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
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