Cassini Publishing Ltd
Publishes reprints of historical Ordnance Survey maps in a variety of paper formats, as gifts, and online; with a catalogue, prices, and details of their service.
Presents old maps of counties of England, Wales, and Scotland.
The National Archives: Maps
One of the world's biggest collections of historical maps from the 14th century onwards. Includes examples and viewing details.
Offers historical mapping from Ordnance Survey series from 1840 to 1948. Includes an interactive gallery of maps, and online sales.
Old Maps Online
Acts as a search portal for historical map collections held at the British Library and elsewhere.
Old OS Maps
Shows scans of Ordnance Survey maps (from around 1925 to 1945) linked to Google maps.
The Pont Maps
The National Library of Scotland's guide to maps of Scotland made by Timothy Pont in the 1580s and 1590s; includes a history, his maps and descriptive texts, and a bibliography.
Tooley Adams & Co
Dealer of antique maps and atlases that also holds a large stock of original printed maps from the 15th to 19th Centuries.