In 1939 Punch published cartoons of a fanciful railway. But little did they realise that it would become a reality in the 1950s and that it would carry some 2 million passengers.
The reality was the Far Tottering and Oyster Creek Branch Railway — a narrow gauge railway created in Battersea Gardens by Rowland Emett for the 1951 Festival of Britain.

Being Emett it was one huge piece of whimsy, from the three locos, Nellie, Neptune and Wild Goose, and the two stations to the “Do Not Feed the Bats” notices at the tunnel entrance.

Sadly the original lasted only until 1953.
Read more at , The Far Tottering and Oyster Creek Railways of Roland Emett and IanVisits.