Measurements
To fit chest
24, 26, 28, 30, 32 ins
(61, 66, 71, 76, 81 cm)
Length from back neck
15, 17½, 19, 22, 23 ins
(38, 45, 48, 56, 58 cm)
Sleeve seam
8, 10, 12, 14, 15 in
(20, 25, 31, 36, 38 cm)

Each pattern has a different set of recommended yarns. The following are from the Studley version.

Materials
STUDLEY Double Knitting
Superwash (machine washable)
12, 14, 16, 18, 19 balls
Super Pure New Wool
11, 13, 15, 17, 18 balls
Tricel Nylon Crepe or Supreme
12, 14, 16, 19, 20 balls
Swiss Nylon and Petspun Nylon
10, 12, 14, 16, 17 balls
Studleyknit
10, 12, 14, 16, 17 balls
Serenade
12, 14, 16, 18, 19 balls.