Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Calculation of the value of an ore, notes
Typed in black ink on cream paper. Two pages attached with a paperclip. Notes and calculations, calculating the value of an ore.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.