My real reason for writing was just to say that we have recently added all our holdings of the more detailed OS 25 inch to the mile maps of Devon (1855-1943) to our website too.
The home page for the OS 25 inch series is at: http://maps.nls.uk/os/25inch-england-and-wales/index.html and you can search and view all the maps of Devon through a map interface at:
There is also a list of the OS 25 inch sheets for Devon in sheet order at:http://maps.nls.uk/os/25inch-england-and-wales/devon.html
We are in the process of georeferencing the sheets too – at present the georeferenced coverage is just for south-east England at:http://maps.nls.uk/geo/explore/#zoom=8&lat=51.4686&lon=0.0404&layers=176 but we hope to cover Devon too in the next month or so.
Reasonably enough, people don’t think of visiting the National Library of Scotland website for maps of southern England, so we are always keen to alert those that might be interested in case they can help spread the word.
With kind regards,
National Library of Scotland