Keywords: Graig Goch Dam Elan Valley (1294241).jpg Abstract Graig Goch Dam Elan Valley Size mm 163 exhibition history Institution National Library of Wales Technique negative glass plate negative bw object history CC-zero Creator Percy Benzie Abery 1294241 Graig Goch Dam Elan Valley 1294241 Uploaded with GWToolset Graig Goch Dam Elan Valley 1294241 http //dams llgc org uk/iiif/test/image/1294241/full/1000 /0/default jpg Images uploaded as part of NLW - WMUK collaboration Photographs by P B Abery in the National Library of Wales Elan Valley Reservoirs Craig Goch Reservoir |