(The color is all wrong in this photo, as you will see, the yarn is red.)
Here you can see some of the choices I've made as the project progresses:
This is the center front of the sock. I added a little triangle, for just a bit of interest. When I started the sock, I only had 4 needles, and I had a very hard time with the tension, particularly going from needle to needle. You can clearly see where I stopped knitting until I was able to borrow a needle from a friend. The tension issue has gotten better, but it has not gone away. I'm not sure what else to do. Perhaps it is because of the small size of the stitches; perhaps it is because the silk/wool blend is not as forgiving as a plain wool yarn. I don't usually have this problem.
Here you can see the back of the sock. I began by purling the first and last stitch of each row, but after completing 2 triangles, I decided it didn't look right. Looking closely again at the photo of the artifact, I decided to purl just the first stitch of every other row. It seems more correct, but I didn't like how that looked, either. After one triangle, I switched again.
Now I am purling the first stitch, except at the beginning and end of each triangle. That stitch I am knitting so that I don't have 3 purl stitches in a row. It does not exactly match the artifact, but I like how it looks. One more triange and I should be ready to start decreasing!