Top section of main girder of 100-inch telescope dome being hoisted through shutter opening; view from inside dome structure. Three (3) construction workers are seen; one is standing on top of the girder being moved, one is to the side and the third is standing on the platform below the girder. Image courtesy of the Observatories of the Carnegie Institution for Science Collection at the Huntington Library, San Marino, California.
Plate girders Plates, Iron and steel Girders Building, Iron and steel Construction projects Construction workers--United States Observatory domes Framing (Building) Mount Wilson Observatory Mount Wilson (Calif.) Photographic prints. (gmgpc) Group portraits. (gmgpc) Portrait Photographs. (aat)
If you're wondering about permissions and what you can do with this item, a good starting point is the "rights information" on this page. See our terms of use for more tips.
Share your story
Has Calisphere helped you advance your research, complete a project, or find something meaningful? We'd love to hear about it; please send us a message.