Citations
2 small plastic protractors, c.1913, GBR/1928/NRI/NRI2/8/20/1/5, Box NRI2/8/20/1/1-5. Needham Research Institute. |
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2 small plastic protractors, c.1913, GBR/1928/NRI/NRI2/8/20/1/5, Box NRI2/8/20/1/1-5. Needham Research Institute. https://archivesearch.lib.cam.ac.uk/repositories/21/archival_objects/849749 Accessed November 27, 2024. |