Glossy quality crochet cotton or fil d’Ecosse, size 20
Steel crochet hook US size 6 (1.5 mm) or size for gauge

16.5 meshes and 18.5 rows = 4” (10 cm) square

This is a filet pattern shaped like a rectangle with the corners cut off; that is, an irregular octagon. The center has lacet stitch.

Pattern 1, page 2 (inside cover) of Crochet Monthly 314.
“Arabesques” in 1000 Mailles.