Not prewar, but this hat is a terrific addition to my Nolan Ryan game used collection. The thing that makes this hat special is the use. Not many of Nolan's hats enter the hobby with the use characteristics that this one displays.
This one is pretty salty.
It must have originated from a few days in the season with lots of humidity...
This hat originated from one of the other advanced Ryan collectors in the hobby; a close friend of over 20 years.