The yarn is a wool superwash (machine washable) made especially for sock knitting.
Stripes evolved as knitting progressed. Fringe was added. Dimensions: 8" x 74".
These are a few other scarves made by other ravelers from the same pattern, displayed on Flickr.
I'll definitely be knitting this pattern up again in a different self striping yarn, as it keeps you wondering how the next section will appear.