Description
Digitised copy of black and white photograph of Gelligaer Common IV Roman practice camp showing a cross-section of the ditch made by a drainage cutting taken by J. K. St. Joseph in 1959, copied from RCAHMS St Joseph Collection for University of Wales Press publication "Roman Camps in Wales and the Marches ", by J.L. Davies and R.H. Jones, Board of Celtic Studies, University of Wales.
