Looks like a sleeveless top worn with a sleeved sweater, but is in fact one garment.

Measurements
To fit bust
71-76, 81-86, 91-97 cm (28-30, 32-34, 36-38 in)
Garment measures
80, 96, 104 cm (31½, 38, 41 in)
Length from top of shoulders
55, 57, 60 cm (approx 21½, 22½, 23½ in)
Sleeve seam, measured down centre
43, 46, 47 cm (approx 17, 18, 18½ in)

Materials
Patons Mohair Focus
Main Shade (2006) X 25 gram balls 10, 11, 12
1st Contrast (2082) X 25 gram balls 2, 2, 2
2nd Contrast (2070) X 25 gram balls 1, 1, 1
3, 4, 4 buttons.