From "A Treasury of Knitting Patterns" by Barbara Walker (The First Treasury).
I've changed the way the repeats are handled in the instructions, but the knitted result is identical.
Shown with a cast-on count of 19 stitches.
1 2 3 4 5 Horizontal repeats
1 2 3 4 5 Vertical repeats
Swatch photo uploaded by chrisfourfalcon