Pictures of traditional hat making

[Kreissaege]

http://www.faz.net/aktuell/lebensstil/mode-design/im-atelier-der-mann-mit-den-hueten-12786299.html
In german, but you will get the gist. A Hat maker from Nuremberg shows how its done.
I especially like pic no. 3, a tool called "Konformatuer" measures the circumference and shape of the head with adjustable rods.
Pic no 4 shows the accordingly formed "Formillon" inside the head.