Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Drill Bits (brochure)
Content summary - details of drilling equipment manufactured by Craelius Company Limited, London. 11 pages, stapled. Illustrated throughout. Also includes two loose information sheets.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.