Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Ty Trist Colliery, plan
Blueprint showing 'proposed extension of electrical shop', Ty Trist Colliery. Scale ⅛"=1 foot. Drawing no. TTP162.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.