Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Brookhill Colliery, plan
National Coal Board, East Midlands Division No.4 Area Brookhill Colliery Arrangement of Helical Chute Piper Seam- low main. Plan 2. April 10 1948
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.