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Amgueddfa Cymru – Museum Wales
Printed in black ink on off-white paper. A table containing figures for the fuel consumed in colliery boilers in Great Britain (table II). A table taken from a 1950 paper by Metcalf. Loose within a beige/light brown file with all other documents with the accession number 83.184I/70. The file is labeled 'Steam and Electric Collieries'.
