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Amgueddfa Cymru – Museum Wales
Two pages originally pinned together. Typed in black ink on off-white, company headed paper. Letter from Baldwins Limited (Port Talbot Branch) to W. Simons (managing director of Guest Keen & Nettlefolds Ltd, Cardiff). Letter regarding the use of coke oven gas at Margam, with information relating to coal consumption. Dated 20th May, 1930.
