No. 2 A. bis (Upper Sheet) Sketch A Showing the progress of the Survey in Section No. 1 from 1852 to 1873. Sub sketch - Rocks off Portland Harbor 1864. Annual Report 1873.
| 640 x 429 | 46.78 KB | |
| 1280 x 857 | 180.60 KB | |
| 1920 x 1285 | 403.97 KB | |
| 3250 x 2174 | 1.30 MB |
| Added On | 20th October 2015 |
| Viewed | 9 viewed |