| Title | Yerkes Observatory Buildings, Instruments, Equipment, Grounds |
| View | 40-inch Refractor Telescope 26:1058 (2008-003) |
| Series | VI: Yerkes Observatory |
| Description | Yerkes Observatory 40-inch refractor telescope with a view of its grinding worm-wheel bearing. |
| Subject Terms | Refracting telescopes | Bearings (Machinery) |
| Photograph Date | 1897-08-13 |
| Physical Format | Glass plate negatives; 24.8 x 19.8 cm |
| Manufacturer | Alvan Clark & Sons; Warner & Swasey Company |
| Location | 373 West Geneva Street | Williams Bay, Wisconsin |
| Campus Grid | Y01 |
| Collection | Archival Photographic Files |
| Repository | University of Chicago Library, Special Collections Research Center |
| Image Identifier | apf6-00320 |
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