Disgrifiad
Caerau Castle Ringwork, Glamorgan; measured drawing comprising plan and section view, surveyed in 1965 by A.H.A. Hogg, and C.H. Houlder, drawn by C.J. Spurgeon, 21st September 1981.
Cychwynnwr
Dr A.H.A. Hogg, Christopher H. Houlder, Mr C. Jack Spurgeon, RCAHMW