LevelSub-groupDescriptionColour photo surveys of scheduled ancient monuments in Montgomeryshire and Radnorshire carried out by W. G. Owen, 1999.ArchiveCSAM - Cadw Scheduled Ancient Monument 35mm NegativesDateArchive Number6513922
LevelSub-groupDescriptionColour photo surveys of scheduled ancient monuments in Montgomeryshire and Radnorshire carried out by W. G. Owen, 1999-2000.ArchiveCSAM - Cadw Scheduled Ancient Monument 35mm NegativesDateArchive Number6513924
LevelSub-groupDescriptionColour photo surveys of scheduled ancient monuments in Breconshire and Radnorshire carried out by W. G. Owen, 1999.ArchiveCSAM - Cadw Scheduled Ancient Monument 35mm NegativesDateArchive Number6513923