Calibrating geomagnetic instruments at the Coast and Geodetic Survey geomagnetic observatory at Corbin, Virginia.
Photo Category: Coast and Geodetic Survey - Geophysics Geomagnetism
Photo Date: 1963 September
| 640 x 397 | 60.44 KB | |
| 1280 x 793 | 216.29 KB | |
| 1920 x 1189 | 436.34 KB | |
| 2414 x 1494 | 794.83 KB |
| Added On | 16th October 2015 |
| Viewed | 70 viewed |