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CEFND - Cefn Du Manuscripts
1-98 - General company transactions
95-98 - Ledgers showing summary results of working generally
Rhif Cyf Amg
CEFND/97
Teitl
Ledger of Tabular Results of working in Llanberis Slate Company's quarries - per month
Dyddiad
6 October 1894-20 January 1912
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