Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Setting and Withdrawal of Supports (booklet)
68 page illustrated booklet. Issued to T. Mortimer Reg. No. 22620, Colllier at Gam Slope Colliery?
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.