From the Knit Rowan website:
Knit this ladies boat neck sweater from Rowan Knitting & Crochet Magazine 56 as an exclusive download, a design by Grace Melville using the stunning combination of Mohair Haze (super kid mohair and extra fine merino wool) and Fine Art (merino wool, kid mohair and silk.) This pretty sweater has a geometric mosaic design knitted using the stranded technique and contrasting stripes. This pattern PDF has also been translated into French, German & Dutch - only print the pages you need after downloading.

Finished chest width dimensions:
50: 55: 61: 67: 74 cm
19½: 21½: 24: 26½: 29 inches

Yarn Information:
Mohair Haze
A - Hug 524
9, 9, 10, 10, 11 skeins
1008, 1008, 1120, 1120, 1232 yards

Fine Art
B - Lapwing 306
2, 2, 2, 2, 2 skeins
874, 874, 874, 874, 874 yards