A Rare Raised-Relief Map of London, Published by the Ordnance Survey Office 1876Origin: EnglishPeriod: Mid VictorianProvenance: UnknownDate: 1876Height: 32Width: 26Depth: 1The scarce hand coloured map with raised ranges in relief, of London and the immediate surrounding area with the Thames river running through the centre, bordered by ripple moulded ebonised frame, the lower right corner reading Engraved at the ORDNANCE SURVEY OFFICE Southampton, under the direction of Colonel J. Bayley R. E. C. B the outline and writing by A.