Bowles' New Medium Atlas
This is essentially the Atlas Anglicanus plates from 1767 with a deleted old cartouche and a new one concerning Bowles inserted.
It was republished in 1793+ with apparently a few more minor changes.
Displayed scale of 14 miles = 53mm, or 6.7 miles/inch, actual scale = 5.7 miles/inch, ie 1:360,000.