GB 0402 PBB
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1909-1921
Correspondence, log books survey notes, maps and other papers concerning the members and the work of the Commission and the publication of its results, 1909-1921, including correspondence with H S Toppin; calculations of positions; survey notebooks, angle books and log books of H S Toppin, 1911-1913 and log book of C G Moores, 1911.
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