Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Geological Survey & Museum, London , letter
Black print on white paper with handwritten details in black ink. Letter from the Geological Survey & Museum, London re. veins, seams and measures. Dated 11 May, 1906.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.