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Amgueddfa Cymru – Museum Wales
Envelope of notes on index cards and similar sized slips of paper on the industrial history of the north Wales iron industry and Brymbo in particular. Headed "Holywell, Caerwys & Bodfari Forges, Leeswood Furnaces, Ffrwd Ironworks, Alyn Tinplate Works, Shotton Steelworks".
