Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Abernant Colliery, docs. re sinking of new shaft
Copy of a plan, blue/black ink on off-white paper. There is also a sketch in pencil on the plan. Some details have been highlighted in orange and yellow pencil. National Coal Board S.W. Division Area 9. A plan showing the Underground layout of a modern Colliery based on the Horizon System of mining. Dated 25.4.64.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.