I bought a cap like that from a gun shop. I wore it to my grandfather's house and he asked to see it. He said he and the other lads used to wear them and they were called colloquially "goin'-ta-he**" hats, because when you wore you were going out on the town to drink, fight and carouse, all mortal sins of course. He also called it a gangster hat, a Chicago hat, and a driving hat.

I pull mine on with a distinctively rakish tilt, and I cock it off to one side. And anyone as calls my tilted, sticks-out-to-one-side hat silly, I'll be havin' words with outside.