Rhif ArchifTeitlLefelDisgrifiadCyfrwngDelweddauRhif Archif2022-03-17_2474Teitl9 inch 6764_02_940 - Swansea to Abergavenny Electricity Transmission LineLefelItemDisgrifiadPrint of black and white photograph showing aerial view of Bryn Pyllog, Glamorganshire, annotated with chinagraph. Photographed by Fairey Surveys Ltd for the National Coal Board on 27th March 1968. Grid Reference: SO0907Cyfrwng1 black and white nine-inch printDelweddaun
