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Three women perched on the bar at the Cabaret Kursal nightclub in Havana, Cuba, circa 1950. (Photo by Herbert C. Lanks/FPG/Hulton Archive/Getty Images)

Three women perched on the bar at the Cabaret Kursal nightclub in Havana, Cuba, circa 1950. (Photo by Herbert C. Lanks/FPG/Hulton Archive/Getty Images)

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Woman chewing nails

Woman chewing nails

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A group of telephone operators at work at the exchange in Stratford, East London circa 1950. (Photo by Keystone View/FPG/Getty Images)

A group of telephone operators at work at the exchange in Stratford, East London circa 1950. (Photo by Keystone View/FPG/Getty Images)

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Friday is Wash Day for the people of Naples, Italy, July 1956. (Photo by Keystone Features/Hulton Archive/Getty Images)

Friday is Wash Day for the people of Naples, Italy, July 1956. (Photo by Keystone Features/Hulton Archive/Getty Images)

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Joan Nimlo, aged 19, riding her BSA motorbike in Bellrose, Queens, during a meeting of an all female motorbike club, February 1950. (Photo by Keystone Features/FPG/Hulton Archive/Getty Images).

Joan Nimlo, aged 19, riding her BSA motorbike in Bellrose, Queens, during a meeting of an all female motorbike club, February 1950. (Photo by Keystone Features/FPG/Hulton Archive/Getty Images).