A Travelling County Atlas
Having earlier appeared in the Topographical Dictionary and A New British Atlas (published 1833 to 1836), it is now published in A Travelling County Atlas (published 1842 many times to 1888) - and will be in A New County Atlas (1847). See Hall's Map Publisher page.
There is a table of Hundreds, with their numbers printed on the map; in this case the individual Hundreds are not coloured, but both Turnpikes and other major roads are shown in brown. The title appears in a rectangular cartouche, with underneath it Engraved by Sidy Hall.
Across the bottom is "London. Published by Chapman and Hall, No 186 Strand."
Latitude and longitude (noted as being from Greewich) are inscribed around the border, with 2 minute bars and numbers every 10 minutes. The Northern and Southern Divisions (unnamed) are edge-coloured.
Since 1833 some railways have been added - as double parallel black lines with closely spaced cross bars, in-filled in blue from London to Brentwood but uncoloured beyond that past Colchester into Suffolk (labelled Eastern Counties Railroad), and similarly blue in-filled from Stratford to Bishops Stortford but uncoloured beyond that northwards into Cambridgeshire (labelled Cambridge Rail Rd). The growing lines reached Brentwood in 1840 and Bishops Stortford in 1842, and would extend further in the next few years; the Acts authorizing their building were passed in 1836 and 1835 respectively.
Displayed scale of 10 miles = 37mm, or 6.9 miles/inch; actual scale = 6.6 miles/inch, or 1:420,000.