Plan, sections and elevations of the Thames Tunnel, London Half Moon Tavern The River Thames is crowded

The River Thames is crowded with colourful barges and steamboats

Dressed in ceremonial costume

with some in the foreground who may be mud-larking - looking for anything washed up by the tide that they might use or sell

Windsor Castle

and looks benevolently out of the picture

Plan, sections and elevations of the Thames Tunnel, London Half Moon Tavern The River Thames is crowdedPlan, sections and elevations of the Thames Tunnel, London, 1835. The Thames Tunnel, connecting Wapping and Rotherhithe, was the first underwater tunnel in the world. Completed as a foot tunnel in 1843, it was converted to a railway tunnel for the East London Railway in the 1860s. Sir Marc Isambard Brunel designed the tunnel, and his son, Isambard Kingdom Brunel, was site engineer.