Citations
Stipples screens rulings catalogue, 1949, GBR/3296/Maps/CCSA.OS_163_1, OS_163_1. Cambridge University Library. |
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Stipples screens rulings catalogue, 1949, GBR/3296/Maps/CCSA.OS_163_1, OS_163_1. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/243381 Accessed November 18, 2024. |