Pattern is for a doily in 17 rounds and is fully charted as well as detailed instructions for Rounds 1 thru 6, 9, 15 and 17.

Skill level = Advanced

If you use shiny crochet cotton (or fils d’Ecosse) no. 10 and steel hook US size 2 mat will measure about 19” in diameter

Pattern 19 and on page 43 of Decorative Crochet.
Pattern 12, “Fine Dentelle”, in 1000 Mailles.

#size20