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Amgueddfa Cymru – Museum Wales
Wrought iron boiler plate from top ring of a haystack boiler, flattened and pierced for reuse in early 19th century ironstone pit winding engine or pumping engine. Used for holding down studs of engine. Excavated by G.G.A.T. at Ffos-Y-Fran open cast coal site, 2008-2009.