A Complete County Atlas of England & Wales
The map was published in sheet form by Ebden in 1828, as an Atlas in 1833 (re-issued several times to 1865) and then by Duncan in 1835 (re-issued 1840), and then by Collins in 1871.
Scale correct at 10 miles = 64mm, or 4.0 miles/inch, ie 1:255,000.
In this edition the new "District Divisions and other Local Arrangements effected by the Reform Bill" are shown (albeit without the new Parliamentary North & South Divisions).