Girls and Boys have separate patterns for both Left and Right Front. This makes it easy to add the buttonholes.

Measurements
Chest/bust sizes
50, 55, 60, 65 cms
(20, 22, 24, 26 ins)
Finished measurement
60, 65, 72, 76 cms
(24, 26, 29, 30½ ins)

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

Materials
PETER GREGORY Chunky Knitting
Peregrine Courtelle
3, 3, 4, 5 100 gram balls
5, 5, 6, 6 buttons.