The Mount Wilson Observatory Optical Shop Papers comprise 8 boxes of material relating to the operation of the department from 1911 to 1963 (bulk 1930-1947). This material is divided into four general categories: research and procedural notes,...
The correspondence includes 365 letters separated chronologically into 37 folders by year. Box 1 has 20 folders inclusive of the years 1837-1859. Twenty folders account for one folder for each year except 1838, 1839, and 1843 which do not have any...
The collection contains correspondence to, from, and about Don Blanding. The majority of the correspondence is by Arthur J. Babcock, Don Blanding's literary representative with Dodd, Mead and Company. Arthur J. Babcock wrote to Don Blanding, Dodd,...
This collection consists of two distinct sections: the Grace Nicholson papers (2,926 pieces) and addenda (1,444 pieces). The papers are primarily correspondence, while the addenda is primarily notes. Both relate to Grace Nicholson (d. 1948) and her...
Robert Georgen in the machine shop at Mount Wilson Observatory's Pasadena shop. Georgen is wearing an apron over his shirt, and he is wearing a watch on his left wrist. Georgen is posing next to one of the machines. Posters, drawings and papers are...
The collection consists of manuscripts (by and about Lawrence), correspondence (including over 150 letters by Lawrence), photographs, drawings, reproductions and ephemera. Also included in the collection is research material of various Lawrence...
50-foot interferometer mount in front of Mount Wilson Observatory's machine shop, Pasadena. Three (3) unidentified mechanics are posed with the steel mount; two are standing on the ground next to the mount, and the third is seated above the mount....
50-foot interferometer mount in front of Mount Wilson Observatory's machine shop, Pasadena, with Pt. Loma eclipse cameras attached. The machine shop building is in the background, behind the steel mount.
Attaching the eclipse cameras onto the 50-foot interferometer mount at Mount Wilson Observatory's machine shop, Pasadena, for use at the 1923 Pt. Loma eclipse. Two (2) unidentified men are seen within the steel structure, attaching a camera to the...
Frank Golden using the 60-inch mirror grinding machine at Hale Observatories' Pasadena machine shop. Golden is left of center, with his hands on a part of the grinding machine. The interior of the machine shop room is seen behind him.
Interior of Switzers women's dress and hat shop at 2118 West 7th Street. A two-story display area with wood furniture and widely spaced display mannequins.
Street view of the H.B. Woods Maytag Shop at 26 North Raymond, with a Willys pickup truck parked on the street in front. The pickup truck has a refrigerator in the flatbed, and the business name, address, and phone number is painted on the side of...
A shipment of washers being unloaded from a train and loaded onto a truck. The washers are being delivered to the H.B. Woods Maytag Shop at 26 North Raymond. Several men stand on the ground near the truck and crates of washers, while another two...
Street view of Wrights Wave Shop, a beauty shop at 905 East Green. The building is made of bricks, painted white, with a large awning over the whole front of the store.