The Cable Panel needs a Cable needle to hold some of the stitches.

Measurements
Chest sizes
40, 45, 50, 55, 60 cms (16, 18, 20, 22, 24 ins)
Finished measurement
49, 52, 57, 63, 69 cms (19½, 21, 23, 25, 27½ ins)
Length to shoulder
20, 25, 30, 35, 39 cms (8, 10, 11¾, 13¾, 15¼ ins)
Sleeve length
13, 16, 20, 25, 28 cms (5, 6¼, 8, 10, 11 ins)

Each pamphlet has a different set of recommended yarns. The following are from the Peter Gregory version.

Materials
PETER GREGORY Double Knitting
Peregrine DK
1, 2, 2, 3, 3 100 gram balls
Gosling DK
2, 3, 4, 4, 5 50 gram balls
Snowgoose All Wool DK
3, 4, 5, 6, 8 50 gram balls
4, 5, 5, 6, 6 buttons.