A pork pie hat is one of several different styles of hat that have been popular since the mid-19th century. It features a flat crown that resembles a traditional pork pie. Buster Keaton and the 1920s 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. Silent film actor Buster Keaton converted fedoras into straw boater-like felt pork pies by stiffening their brims with a dried sugar-water solution. This kind of pork pie had a very flat top and similar short flat brim. 1930s and 1940s The heyday of the pork pie hat occurred during the Great Depression, following the straw boater era that peaked in the Roaring Twenties. In this incarnation, the pork pie regained its snap brim and increased slightly in height. Its dished crown became known among milliners as "telescopic crowns" or "tight telescopes" because when worn the top could be made to pop up slightly. Furthermore, as stated in a newspaper clipping from the mid-1930s: "The true pork pie hat is so made that it cannot be worn successfully except when telescoped." The same clipping refers to the hat also as "the bi crowned". Among famous wearers of the pork pie during this era are Frank Lloyd Wright, whose pork pie hat had a very wide brim and rather tall crown. Lester Young, whose career as a jazz saxophonist spanned from the mid-1920s to the late 1950s, regularly wore a pork pie hat during his performances, and after his death Charles Mingus composed a musical elegy in Young's honor entitled "Goodbye Pork Pie Hat". Young's pork pie had a broader brim than seen in earlier styles but retained the definitive round, flat, creased crown. A porkpie hat was a trademark of physicist Robert Oppenheimer, scientific director of the World WarII project that developed the atomic bomb. In African American culture in the 1940s the pork pie—flashy, feathered, color-coordinated—became associated with the zoot suit. By 1944 the hat was even prevalent in New Guinea. Post-1950s After the end of World War II the pork pie's broad popularity declined somewhat, though as a result of the zoot suit connection it continued its association with African American music culture, particularly jazz, blues, and ska. In television between 1951 and 1955, Art Carney frequently wore one in his characterization of Ed Norton in