Letters from Edmund Vale to Captain Conant concerning the excavations at Barclodiad-y-Gawres cromlech on Pen y Cnwc headland, and enclosing photographs (4) of the site and excavators, who include T.G.E.Powell of the Dept. of Prehistoric Archaeology, University of Liverpool (director), and Dr Glyn Daniel, Lecturer in Archaeology, University of Cambridge. 21 December 1956