Gauge
6 sts and 8 rows measures 1 inch in st st using size 3.75mm needles.

Measurements
To fit those with chest 41, 46, 51 cm (16, 18, 20 inches)

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

Materials
BAIRNSWEAR DOUBLE KNITTINGS
Coronet Baby DK
2, 2, 2 balls
Coronet Baby Quickerknit
2, 2, 2 balls
Stitch holders
1 button.

Materials for Complete Set
BAIRNSWEAR DOUBLE KNITTINGS
Coronet Baby DK
9, 10, 11 balls
Coronet Baby Quickerknit
8, 9, 10 balls.