William Friedman and his wife Elizebeth not only were great codebreakers, but they also were creative and had a sense of humour. This can be seen from the Christmas cards they devised in the 1920s and 1930s.
William Friedman and his wife Elizebeth not only were great codebreakers, but they also were creative and had a sense of humour. This can be seen from the Christmas cards they devised in the 1920s and 1930s.
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