Challenging. Written text supplements chart.

Cordonnet crochet cotton sufficiently thick with work US crochet hook size 6 (1.5 mm) or use size for gauge. Yardage is given for size 10 thread.

First three rounds measure 2.25” in diameter.

Pattern 17, page 36 in Decorative Crochet 79.
Called “Couronne” in 1000 Mailles. #228