I had all these massive bronze rings laying around, left over from a TRL order.  They weren't going to be used for anything, so I decided I may as well try another coif.  But since the rings were so big and had such a massive AR, I decided that I would do it in European 6:1 to make the weave denser (more dense? is "denser" a word?).  So anyway I asked around a bit to figure out how to make a 6:1 coif, and this is what I came up with.  The first nine rows down from the queen ring are in a smaller size, and in European 4:1, and from there down the larger-ring 6:1 takes over.  I managed to make the thing in four days, with maybe nine or ten work hours total.

I have to apologize for this utterly crappy picture.  It's a self-portrait, at night, using only a wall mirror and no tripod, so...I'm surprised it came out even this well.

14 ga 7/16" ID
12 ga 3/4" ID
Bronze
In the European 4:1 and 6:1 weaves.