Historical geography - browse maps | British History Online:
"Ordnance Survey 1:2,500 Epoch 1 The County Series maps at scale 1:2500 for Birmingham, Cardiff, Chester, Chichester, Colchester, Coventry, Durham, Edinburgh, Glasgow, Lichfield, Liverpool, Manchester, Newcastle, Oxford, Portsmouth, Salisbury, Southampton, Winchester, Worcester, York and much of central London.
Ordnance Survey 1:10,560 Epoch 1 The County Series of Ordnance Survey maps for Great Britain. Begun in 1840, this is the first comprehensive historic mapping of England, Scotland and Wales."
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