It has probably been at least 5 years since I taught this class, so I'm adding a diagram that may help explain something in the handout, since I'm not physically there to explain it.
I base S and Z on the direction that the thread passes through the card (others base this on the tilt of the card). Either can be remembered by thinking of the center of an S (\) or a Z (/). S and Z can be changed by flipping the card on the vertical axis:
When you flip the card this way, changing it from S to Z, or vice versa, you are in effect changing the rotation direction of the card. So, if you aren't comfortable flipping the card, you can also move them in the opposite direction from the rest of the pack. In this pattern, I think flipping two cards on the axis every four turns and rolling the entire pack 4 forward (away from you) and 4 backwards (towards you) is easier than remembering that two cards continue to roll forwards throughout the band (and Crocket's version makes this even more complicated), but I realize that not everyone feels that way. Do what works best for you. There is no one true way in weaving.
*incomplete notes at the end about the problems dating this pattern*
The rest is my old handout:
*The next three images overlap, so it is easier to connect them*
Controversy over antique kilim rug finds http://www.marlamallett.com/chupdate.htm
I did find a picture of an ancient kilim rug that had a motif similar to kivrim from a differnt source when I initially wrote this handout, but it was not exact, and I have not had time to access that hard drive, to see if it is still there. As with most people I know, I like to think that I have a good memory, but I also understand that much of memory is false. Until I find that picture, which should also have my notes on where I got it from, consider kivrim motifs being ancient unclear.
I can date the pattern to the 17th century on Armenian rugs, so the pattern is earlier than 18th-19th century. However, I'm not going to dig out those pictures tonight, or probably for a few weeks, but at least those are recent enough to be on my current computer.
