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Citations

Comparisons of standard bars, 1847 - 1857, GBR/0180/RGO 6/354. Cambridge University Library.

Comparisons of standard bars, 1847 - 1857, GBR/0180/RGO 6/354. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/archival_objects/98546 Accessed May 24, 2024.

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