Archive6511413Title89_408_0118 - Ordnance Survey Vertical Aerial Photography CollectionLevelItemDescriptionBlack and white aerial photograph of Penrhos, Ystradgynlais, taken by the Ordnance Survey on 7th September 1989 at an altitude of 8300 feet. Grid reference SN7911. Print enlargement (c. 20") taken from 9" film roll.MediumPhoto.Imagesn
