Cordonnet crochet cotton size 40. Steel crochet hook US size 12 (0.75 mm) or size for gauge.

First three rounds measure 1 1/8” in diameter. 22 rounds. Advanced.

Pattern 7, page 14, no name given in Magic Crochet 152.
pattern 9 in Lace of Europe.
Pattern Azur, p. 10, in 1000 Mailles, Napperons au Crochet #101