The size of these mittens is determined by the gauge, and is altered by changing needle size.

Finished measurements:
Hand circumference: 7 ¼ (7 ¾, 8 ¼)” / 18.5 (19.5, 21) cm
Hand length: 7 (7 ½, 8 ½)” / 18 (19, 20.5) cm
Total length: 9 ¼ (9 ¾, 10 ¼) / 23.5 (25, 26) cm
Shown in size 7 ¼” / 18.5 cm.

Gauge:
For size 7 ¼” / 18.5 cm:
36 sts and 41 rounds = 4” / 10 cm in Stockinette stitch over Chart using Size 1 ½ US / 2.5 mm needles

For size 7 ¾” / 19.5 cm:
34 sts and 38 rounds = 4” / 10 cm in Stockinette stitch over Chart using Size 2 US / 2.75 mm needles

For size 8 ¼” / 21 cm:
32 sts and 36 rounds = 4” / 10 cm in Stockinette stitch over Chart using Size 2 ½ US / 3 mm needles

A supplementary chart has been created for those who wish to work the pattern as an over-all repeat on a blanket or garment. It is now included in the Filigrene pattern PDF.

Errata:
VERSION CHANGE
08.02.15 Original version
02.16.16 Page 5 - A new page was added to include a bonus chart.