Errata note from roseanglaise:
Maths is incorrect for the middle size (12-14): instructions are to “asterisk K3, p2, rep from asterisk to last 3 sts, k3” into a row of 52 stitches.

Sizes
• To fit bust 32-34” (81-86 cm): actual length 17-3/4” (45 cm); cuff to cuff 59-3/4” (152 cm)
• To fit bust 36-38” (91-97 cm): actual length 18-1/2” (47 cm); cuff to cuff 61-3/4” (157 cm)
• To fit bust 40-42” (102-107 cm): actual length 19-1/4” (49 cm); cuff to cuff 63-3/4” (162 cm)