The Duchy of Cornwall

Story of four youngsters who discover birds' nest thieves on a sanctuary island.From story by Mary Cathcart Borer.

As the subtitle of the film suggests - The Story of a Post Card from Manchester to Graffham - this journey is very much focused on the process of sorting, transporting and delivering the postcard in question.

How long-distance telephone calls are made, from the UK to the USA. We see operators, miles of wires, and the amplification of voice transmitted across the waters. Engineers of the Post Office describe how they are improving the service.