The Charles Close Society for the Study of Ordnance Survey Maps

Ordnance Survey Old Series one-inch map of England & Wales

Sheet 46NW Woburn. Surveyed 1813 to 1815 and revised 1831 to 1832

State 2. (HM4-1), NLA, 1834 View on National Library of Australia website

State 10. (HM4-8), ATL, 1862 View on Alexander Turnbull Library, National Library of New Zealand website

Sheet 46NE Woburn. Surveyed 1804 to 1815 and revised 1831 to 1832

State 1. (HM4-1), NLA, 1834 View on National Library of Australia website

State 10, ATL, ca 1862 View on Alexander Turnbull Library, National Library of New Zealand website

Sheet 46SW Woburn. Surveyed 1806 to 1813 and revised 1831 to 1832

State 1. (HM4-1), NLA, 1834 View on National Library of Australia website

State 12. (HM4-8), ATL, 1862 View on Alexander Turnbull Library, National Library of New Zealand website

Sheet 46SE Woburn. Surveyed 1800 to 1815 and revised 1831 to 1832

State 1. (HM4-1), NLA, 1834 View on National Library of Australia website

State 9, ATL, 1861 View on Alexander Turnbull Library, National Library of New Zealand website

Full cartobibliographic details including lists of states are in The First Ordnance Survey Map by Roger Hellyer and Richard Oliver