Interior of magnetic observatory at Mount Weather showing declinometer and theodolite. In: “Yearbook of the United States Department of Agriculture. 1906.” 1907, p. 122.
Photo Location: Mount Weather, Virginia
| 640 x 503 | 85.47 KB | |
| 1280 x 1006 | 289.45 KB | |
| 1304 x 1024 | 408.85 KB |
| Added On | 19th October 2015 |
| Viewed | 9 viewed |