Measurements
To fit chest sizes
40, 45, 50 cm (16, 18, 20 in)
Finished measurement
45, 50, 55 cm (18, 20, 22 in)
Length to back of neck
19, 23, 27 cm (7½, 9, 10¾ in)
Sleeve length
12, 14, 16 cm (4¾, 5½, 6¼ in)

The following recommended yarns are from the Peter Gregory version.

Materials
Sunbird Cotton Style 100 gram balls
2, 2, 3 balls
Baby Courtelle Bri-Nylon DK 40 gram balls
2, 2, 2 balls
Crochet hook if required
3 buttons if required.