A New Pocket Atlas and Geography of England & Wales
Tiny map with about 20 towns, with very schematic roads radiating from Chelmsford.
Originally the plate number was about a cm above the circle, but when republished in 1806 this was moved to immediately above the circle - as shown above. This is therefore the 1806 reprint rather than the 1803 original (but that is all that changed).
Scale correct at 10 miles = 6.5mm, or 39 miles/inch, ie 1:2,5000,000 (!). Only Perrot 1823 is smaller.
The rarity makes this the most expensive map of Essex - per square mm of map printed.