20 Iconic British World War II Propaganda Posters

17. "The Telephonist: Be Brief - A War Call May Be Waiting" (1943-1945)

With Britain's telephone system still using switchboard operators during World War II, every single unnecessary phonecall that was made could in theory have delayed an urgent war message getting through.

This poster was one in a series encouraging people to be quick when they phoned their friends and relatives.