Waistcoat

Knitting
Bulky (7 wpi) ?
14 stitches and 18 rows = 4 inches
in pattern using 6½ mm needles
US 7 - 4.5 mm
US 10½ - 6.5 mm
Chest 56 - 81 cm (22 - 32 in) 3 to 14 yrs
English

Measurements
To fit chest
56 61 66 71 76 81 cm (22 24 26 28 30 32 in)
Length from shoulder
30.5 34.5 40.5 46 51 56 cm (12 13½ 16 18 20 22 in)

Each source has a different set of recommended yarns. The following is from the Melandra version.

Materials
Melandra Chunky Knitting
Maxi Ball Chunky
3 3 3 3 3 3 X 100 gram balls
Brushed Chunky
3 3 3 3 3 4 X 100 gram balls
Melandra Mohair Blend
3 3 3 3 3 3 X 50 gram balls
4 4 5 5 6 6 buttons.