Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
O.S. map of Brecknockshire and Monmouthshrie
Original and copy. Geological Survey of England & Wales. Second edition 1905. Brecknockshire Sheet XLVIII N.W Monmouthshire Sheet XII N.W. Scale : Six inches to one statute mile or 880 feet to one inch = 1/10560. Key on left hand side of map.
Pwnc
Diwydiant
Rhif yr Eitem
87.244I/37
Derbyniad
Collected officially, 31/12/1987
Mesuriadau
Meithder
(mm): 484
Lled
(mm): 685
Deunydd
papur
Lleoliad
In store
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.