Citations
The Stanley-Rank cintel automatic reading planimeter [used by the Ordnance Survey, 1960 - 1968, GBR/3296/Maps/CCSA.IM_395_78, IM_395_78. Cambridge University Library. |
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The Stanley-Rank cintel automatic reading planimeter [used by the Ordnance Survey, 1960 - 1968, GBR/3296/Maps/CCSA.IM_395_78, IM_395_78. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/238966 Accessed May 15, 2025. |