Um -- this is not my nephew. But this guy is the only model I could find today.
Please note in the photos below -- point at the top (left photo) and points at the bottom (center photo).
Strangely, many people on Ravelry have reengineered this hat to give it a rounded top -- I think all of the points echoing the other points are this hat's best feature!
Unless, of course, the best feature is the red pompom. Elizabeth Zimmermann recommends knitting the last 14 stitches for 6 rows, then inserting a pingpong ball (or "a rabble of wool ends") and tying the hat below that to make a perfect round bobble. I went the more traditional route.
Bruno's profile is a bit short on detail, but oh, what a hat!