The 'Three Men In A Boat' era River Thames.
This is a map dating from the 1850s when the River Thames upstream of Battersea was the equivalent of the River Thames upstream of Marlow now. (For the sake of accuracy I should point out that JK Jerome's book post-dates this map by thirty years)
The river is fringed by large houses, meadows and market gardens.
Only two bridges span the Thames and Battersea Park has recently replaced a waterlogged area.
Attribution: Davis New Map of the British Metropolis (1852)
