This is from Creating Original Hand-knitted Lace p 37. When I blocked it I pulled it straight. Doh! I'm reblocking it because I can see from the stitch map it has a bias. These stitc maps are magic.
Shown with a cast-on count of 20 stitches.
1 2 3 4 5 Horizontal repeats
1 2 3 4 5 Vertical repeats