London Old Series - Created from four Ordnance Survey Old Series maps first published between 1805 and 1822
London Revised New Series (Coloured Edition) - Created from eight Ordnance Survey Revised New (Coloured) maps first published between 1897 and 1898
London Popular Edition - Created from four Ordnance Survey Popular Edition maps first published in 1920
London New Popular Edition - Created from four Ordnance Survey New Popular Edition maps first published between 1945 and 1946
London Street Map - Created from original Stanford’s Library Atlas sheets
showing Central London in 1891 at street-level.