http://www.von-stroh-zu-gold.de/muster/?p=52 Edge stitches not shown.
Even rows instructions are K3, purl all stitches until 3 stitches before end of row, purl and knit the double yarn over, k3.
Shown with a cast-on count of 26 stitches.
1 2 3 4 5 Horizontal repeats
1 2 3 4 5 Vertical repeats