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Amgueddfa Cymru – Museum Wales
Handwritten in pencil on off-white, blue ruled paper. Written on a torn off piece of paper. Surface costs for Britannia and Penallta Collieries in 1924. 83.184I/70 (32-37) are pinned together. Loose within a beige/light brown file with all other documents with the accession number 83.184I/70. The file is labelled 'Steam and Electric Collieries'.
