Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Notes on Schack Recuperators (article)
Typed in black ink on cream paper. Three pages stapled together. "Notes on Schack Recuperators" by Dr. M.A. Vernon.
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.