Rhif Archif
6516296
Disgrifiad
Hafod-y-Porth Grange - scaled preliminary drawing, ink on tracing paper, showing plan of earthwork remains. Formed basis for Fig.150 in publication Glamorgan Inventory, Vol III, Pt ii.
Enw Casgliad
H.J. Thomas Collection
Cyfrwng
two sheets. Graphic.
Cychwynnwr
Howard J. Thomas