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Amgueddfa Cymru – Museum Wales
Black and white 35mm film negative showing Maerdy Colliery, 1977. 'Mardy' is transcribed from original negative bag.
30A- showing a chain hauled shearer. 31A- showing a chain hauled shearer and three men in between the chocks to the right of the image (feint image) 32A-33A - two similar images showing three men in between the chocks (feint images) 34A-35A - two similar images showing Dai Mardon, Deputy, inspecting a drum of a shearer on the V4 5ft seam, the Red Horizon in 1977.