Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Silver Bullet Stoper - Wylie Colliery
Wylie Colliery, Silver Bullet Stoper (1st approved 1934, this model '36-'40 (1938)
25/09/2012 - Ceri Thompson confirmed this stoper is not a pit prop but used in drilling.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.