M. Henig Three Roman Intaglios from South-Western Scotland Roman and Romano British TDGNHAS Series III, 46 (1969), 100(WARNING very large file size: 130.31 MB)
M. Henig A Roman Intaglio from Birrens Roman and Romano British TDGNHAS Series III, 52 (1976-77), 165(WARNING very large file size: 49.22 MB)
