The Charles Close Society for the Study of Ordnance Survey Maps
Ordnance Survey Old Series one-inch map of England & Wales
Sheet 54NW Worcester. Surveyed 1813 to 1815 and revised 1828 to 1830
State 2 or 3, NLA, ca 1833 View on National Library of Australia website
State 10, ATL, 1862 View on Alexander Turnbull Library, National Library of New Zealand website
Sheet 54NE Worcester. Surveyed 1813 to 1814 and revised 1828 to 1830
State 2, NLA, ca 1833 View on National Library of Australia website
State 12, ATL, ca 1862 View on Alexander Turnbull Library, National Library of New Zealand website
Sheet 54SW Worcester. Surveyed 1811 to 1813 and revised 1828 to 1830
State 1, 2 or 3, NLA, ca 1831-3 View on National Library of Australia website
State 10. (HM4-8), ATL, ca 1862 View on Alexander Turnbull Library, National Library of New Zealand website
Sheet 54SE Worcester. Surveyed 1811 to 1814 and revised 1828 to 1830
State 1, 2 or 3, NLA, ca 1831-3View on National Library of Australia website
State 9. (HM4-7), ATL, 1862 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