I found this pattern in the Encyclopaedia of Knitting and Crochet for Techniques by Luise Roberts. It’s a reversible stitch pattern using just knit and purl stitches – might work well for a scarf in chunky wool.
The stitch pattern repeats over 6 stitches and 10 rows.
Rows 1 and 2: K3, P3
Row 3: K1, P1, K1, P1, K1, P1
Rows 4 and 5: K3, P3
Rows 6 and 7: P3, K3
Row 8: P1, K1, P1, K1, P1, K1
Rows 9 and 10: P3, K3
Here’s the reverse side (very similar, yes?):
And here’s a picture of a bigger sample from the book:
After Laura’s comment, I knitted another stitch sample following the instructions to check that there isn’t a mistake. It looks to be OK.
Here’s the front:
And here’s the back: