This vintage hat was made in the 1950s by the John B. Stetson Company. It is their high end 7X Clear Beaver Quality and has a 3-1/8″ brim. There is no size tag and no reorder tags under the sweatband, but the opening measures 7-3/8″ by 6-1/8″, with a 21-1/2″ circumference.
This vintage hat was made by the John B. Stetson company in the 1960s. It is their Beaver One Hundred model, made from pure beaver felt, originally retailing for a hundred dollars. It has a lining from Rand’s of Billings, who probably did some cleaning or renovation at some point. It measures 21-1/2″ inside, about a 6-7/8″.
You could pick up a good quality Stetson $7.50 when this hat was made. That $7.50 would buy you a better hat than a modern $150 stetson. This hat cost $50. That was a hell of a lot of hat. The quality of these is amazing.