Whatever brand and model of hat this is, it's old. The crown looks like someone's been sitting on it for a while and the brim droops all the way around. And you're right, the brim looks wider that the Filsons which max out at about 3". Thought perhaps because the man appears to be slender - with a small hat size - the brim appears to be wider by contrast. I myself have a large head - hat size 8 - and I find that I need at least a 3.5 to 4" brim so that I don't look -hatwise anyway - like John Candy in Uncle Buck.

The Akurba site link provided above - or below - depending on where in the column this post lands, has hats that appear to be similar, minus the wear and tear. At $100 or more, they are expensive, but no so expensive for a fur felt. Good luck in your search.