Citations
Indexes and conventional sign charts for Ordnance Survey maps, GBR/3296/Maps/CCSA.IM_L147, IM_L147. Cambridge University Library. |
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Indexes and conventional sign charts for Ordnance Survey maps, GBR/3296/Maps/CCSA.IM_L147, IM_L147. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/240820 Accessed May 12, 2025. |