Ordnance Survey England & Wales Town Plans : Blackburn.
Great Britain.Ordnance Survey.
Southampton : Ordnance Survey,
1848, 1893.
14 sheets for 1st ed. 1:1056 (1848); 75 sheets for 2nd ed. 1:500 (1893).
Boundary lines and other features are occasionally over printed in colour.
Blackburn located in the County of Lancashire, England.