Six-piece crown pattern piece illustration. Comes from a 1940s hatmaking book. The picture was scanned at 300 dpi and the grid should be 1″ on printout for true sizing. Disclaimer: I have not tried this piece. The book suggests using 1/3″ seams for a 22 1/2″ crown circumference, and 1/2″ seams for a 21 1/2″ hat.