We have a vast number of old Ordnance Survey maps available, and are especially strong on flat sheets from before 1940 : the one-inch Old Series, New Series, Revised New Series and Third Edition small sheet series. Other very large sections include the one-inch Fifth Edition and War Revisions, half-inch, quarter-inch pre-1945, 1:25,000 First Series, six-inch, agricultural land use. Plus lots of odds and ends.
We have published six books concerning the Ordnance Survey, and can offer a good list of other books on the subject.
Please note that this site is in the early stages of construction.