Cut-off, i.e. flashlight, in use at night on comparator. Night-time operations in comparing lengths of steel tapes. Fig. No. 13, Appendix No. 3, Report of Superintendent ... 1901, p. 258
Photo Category: Geodesy - Base Line
Photo Date: 1901
| 640 x 422 | 54.45 KB | |
| 1280 x 843 | 203.34 KB | |
| 1816 x 1196 | 477.08 KB |
| Added On | 18th October 2015 |
| Viewed | 12 viewed |