Our map library holds microfiche and microfilm which can be used in the Maps Reading Room.
All the Ordnance Survey 25 inches and 6 inches to 1-mile maps for England and Wales are available to consult. We also hold microfiche of the Ordnance Surveyors Drawings.
The Ordnance Survey Sims and Superplan National Grid Collection post-war large-scale maps of Britain and Northern Ireland is only held as microfiche in the Maps Reading Room.