Pattern includes chain stitches, half double crochet, double crochet, 2 and 3 double crochet clusters, 2 double crochet bobble clusters and picoted chain loops for a total of 23 rows.

According to pattern: “Incomplete” stitch of cluster = last loop of stitch is left on hook.

Pattern 4 on page 6 in Decorative Crochet.
Pattern 8, Canelle, in 1000 Mailles.

Skill level = Advanced
Partially written pattern with a well-defined chart.