17 - Heart Crook
Sock 17, page 58.
Socks knit toe-up with afterthought heel.
From the book’s description:
An authentic Turkish sock.
“Heart Crook”: 6 stitch, 10 row repeat.
This pattern is derived from the lower portion of the common hook (see sock 31).
Simply Socks is the softbound title of Fancy Feet.