Citations
Newlyn levelling: diagram of levelling blocks; sheet 2 [Southern Great Britain], 1948, GBR/3296/Maps/CCSA.OS_L51_2, OS_L51_2. Cambridge University Library. |
|
Newlyn levelling: diagram of levelling blocks; sheet 2 [Southern Great Britain], 1948, GBR/3296/Maps/CCSA.OS_L51_2, OS_L51_2. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/245125 Accessed November 20, 2024. |