Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Authorisation book for Examination of Airways
Authorisation book for Examination of Airways (Form S11). Coal Mines Act 1911). Big Pit colliery, dated 1913 to 1927.
Pwnc
Diwydiant
Rhif yr Eitem
2001.1/347
Mesuriadau
Meithder
(mm): 125
Lled
(mm): 205
Uchder
(mm): 15
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.