They are Blauer Peter Socks by Monika Eckert. I found this pattern last week on Ravelry. I already had the yarn, hazel knits artisan sock yarn in Serenity, and knew they were supposed to go together.
I started them on Jan 22 and finished them yesterday. Fastest socks ever!
I love the variation in the patterns. The two borders around the front pattern are different, a section of traveling stitches on one side and two columns of crossed stitches on the other. The placement is mirrored on the two socks, keeping things interesting.
They were knit on two circular needles, size 2.25mm, my favorite for making socks. Here is a closeup of the front and back: