Worked in one piece to armholes.

Measurements
To fit chest
16, 18, 20 inch (41, 46, 51 cm)
Length from back neck
10, 11, 12 inch (25, 28, 31 cm)
Sleeve seam
5, 5½, 6 inch (13, 14, 15 cm)

Each source has a different set of recommended yarns. The following are from the Maryland pamphlet.

Materials
MARYLAND 4 PLY KNITTINGS
Fingering Pure New Wool, Pure Nylon, Superwash (machine washable)
6, 7, 8 balls
3 press fasteners
Ribbon for yoke and sleeves
Stitch holders.