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Amgueddfa Cymru – Museum Wales
Typed in black ink on off-white, headed paper (Imperial Smelting Corporation Ltd). Letter from the Imperial Smelting Corporation Ltd. to Mr W.E. Simons of Guest Keen Baldwins Iron & Steel Co. Ltd (East Moors) re. Avonmouth Work's Waelz kiln. Dated 1st April, 1952.
