Citations
Newlyn levelling: diagram of levelling blocks; sheet 1 [Northern Great Britain including Scotland], 1948, GBR/3296/Maps/CCSA.OS_L51_1, OS_L51_1. Cambridge University Library. |
|
Newlyn levelling: diagram of levelling blocks; sheet 1 [Northern Great Britain including Scotland], 1948, GBR/3296/Maps/CCSA.OS_L51_1, OS_L51_1. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/245124 Accessed April 24, 2025. |