Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Guide to Spencer Works, 1962 (booklet)
55 pages stapled together. Typed in black ink on cream paper. Content summary :- Background, design, layoit and construction of the works, processes used.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.