Modified slightly from A Second Treasury of Knitting Patterns* by Barbara Walker. In the original version, rows 12 and 24 begin with Sl first st and bind off 3 sts, k4, pass 4 sts over the last st worked
. In this version, they begin simply with BO 7 sts
.
*Affiliate link. Buy the book and I get a couple pennies.
Shown with a cast-on count of 45 stitches.