"Vintage Stripe..." original can be found through about three click thrus, or search for "Vintage Vertical Stripe Crocheted Blanket Pattern". She has a blog tutorial, and (separately) a crochet along on ravelry. It is basically a very long DC worked into the 'space between' . Very pretty.
Baby Blanket - Grey & White Chevron with Pink Ruffle (Made-to-Order)