Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Man-riding underground by rope haulage (booklet)
National Coal Board (Mining) Codes and Rules.
36 page booklet in blue covers, stapled at centre.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.