Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Explosives at Creigiau quarry, letter
Typed in black ink on cream paper. Letter re. the testing of the explosive Sabulite at Creigiau Quarry. Dated 29th November, ?4 (full year not given)
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.