1. Map of Southern Britain in the Iron Age Author/Creator: Great Britain. Ordnance Survey Publication/Creation: Chessington, Surrey : Director General of the Ordnance Survey, 1967 Resource Type: Book Edition: Repr. with minor changes 1975. Access & Availability: Loading
2. Map of Britain in the Dark Ages : [a map of Britain in the period between the end of Roman rule and the time of King Alfred (approximately 410 A.D. to 870 A.D.)] Author/Creator: Great Britain. Ordnance Survey Publication/Creation: Chessington, Surrey : The Survey, 1974 Resource Type: Book Edition: 2d edition. Access & Availability: Loading