Citations
DK-RT double circle self-reducing Tachy meter with horizontal rod, 1955, GBR/3296/Maps/CCSA.OS_124_9/2, OS_124_9/2. Cambridge University Library. |
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DK-RT double circle self-reducing Tachy meter with horizontal rod, 1955, GBR/3296/Maps/CCSA.OS_124_9/2, OS_124_9/2. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/242679 Accessed April 30, 2025. |