Yerkes Observatory
| Title | Yerkes Observatory |
| View | 40-inch Refractor Telescope 3 |
| Series | II: Buildings and Grounds |
| Description | The 40-inch refractor telescope of Yerkes Observatory with the Warner & Swasey brass Filar micrometer attached. |
| Subject Terms | Refracting telescopes | Micrometers | Measuring instruments | Astronomical observatories |
| Photograph Date | 1970s |
| Physical Format | Photographic prints; 22.3 x 33.3 cm |
| Location | 373 W. Geneva Street | Williams Bay, Wisconsin |
| Campus Grid | Y01 |
| Collection | Archival Photographic Files |
| Repository | University of Chicago Library, Special Collections Research Center |
| Image Identifier | apf2-08763 |
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