Porkpie Hats

Your faithful correspondent has never been a big fan of the porkpie hat.
In modern times the porkpie hat has been indicated by two elements.
1.) The crown of the porkpie hat is round with a round crease around the top of the hat instead of a longitdutinal crease. In other words, the crease on a porkpie hat follows the crown. In other words, the crown of a porkpie looks much like, when looked at from above, the crust of a pie.
2.) The brim of a porkpie hat usually narrow. Occasionally the brim of a porkpie is wide, as is the case of Buster Keaton or the old comic strip character Hipshot Percussion, but mostly the brim is narrow.
Wearers of the porkpie have been Gene Hackman in his character of Popeye Doyle in The French Connection, Buster Keaton in many of his films, and Mickey Spillane.
Mostly the porkpie has been worn, in movies and television, by characters who are rather questionable in
morals, but not really bad. They have been men who have not quite figured whether they want to be real criminals or law abiding.. In other words, they are apprentices who haven't quite made up their minds whether to be bankers or three card monte men or zoot suiters.