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Pre-printed cost sheets, printed in black and red ink on lined paper, with printed columns. Details are typed in black and red ink. 45 pages attached with a paperclip. Index in the front and half way through, typed in black ink on plain cream paper. British (Guest Keen Baldwins) Iron & Steel Co. Ltd. cost sheets for Port Talbot works, Margam Works and Cornelly Quarry. Cost sheets for 4 weeks ended 27th September 1930.
