From Marianne Kinzel’s First Book of Modern Lace Knitting. Kinzel’s instructions say to begin by casting on 12 sts, then knitting two rounds plain. See also Coronet, part C and this blog post.
Shown with a cast-on count of 4 stitches.
1 2 3 4 5 Horizontal repeats
1 2 3 4 5 Vertical repeats