Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Collection of maps, plans, drgs re iron & steel ind.
Copy of map showing part of Pwll-y-whed and Gwernllwyn Isaf Co. with relation to Dowlais Ironworks, 1810.
Pwnc
Diwydiant
Rhif yr Eitem
87.157I/39
Mesuriadau
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