Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Swansea Navigation Collieries Ltd, blueprint
Blueprint titled 'Proposed Arr. of 8 T.P.H. Coal Washing Plant Swansea Navigation Collieries Ltd. Revised Drg G.W.P. 38. Scale 1/6"=1 Foot'. Dated 23 January 1933.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.