Donegal Vintage Men's Hat Pure Wool from Ireland

This is a vintage man's tweed wool hat tailored by David Hanna & Sons. It is marked as made from pure new wool and Donegal Ireland. It has a band-like fabric on the bottom of the crown with a decorative set of strands on the "closure", but it's actually and integral part of the hat. There are no size markings, but it's about 22" around. There is some denting and there is some weird bending to the brim. It's shaped kind of oval when sitting, but will round when on one's head.