Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Ordnance survey map 1:2,500
Ordnance Survey Office
(Publisher)
OS map: Sirhowy Valley, Hollybush Colliery, Pontgwaith level (coal). Monmouth sheet (photocopy)? 25", 1877. Scale 1/2500 or 25.344 inches to a statute mile or 208.33 feet to one inch.
Pwnc
Diwydiant
Rhif yr Eitem
70.21I/2
Historical Associations
Association Type: Colliery
Date: 1877
Place: Hollybush Colliery
Creu/Cynhyrchu
Derbyniad
donation, 7/4/1970
Mesuriadau
Meithder
(mm): 1214
Lled
(mm): 761
Deunydd
Paper
Lleoliad
In store
Dosbarth
DocumentNid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.