Gladwin Bond pin on the side. A pork pie hat is one of several different styles of hat that have been popular in one context or another since the mid-19th century. The pork pie began to appear in Britain as a man's hat not long after the turn of the century in the fashion style of the man-about-town, but its resurgence in the United States in the 1920s is credited to the silent film actor Buster Keaton who wore them in many of his films.
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