From the Knit Rowan website:
Knit this womans open back cardigan from Rowan Knitting & Crochet Magazine 57, a design by Marie Wallin using Softknit Cotton (cotton and polyamide) Knitted in stocking stitch with long sleeves. This knitting pattern has a two star difficulty rating.

Finished chest width dimensions:
44.5: 49.5: 55.5: 61.5: 68.5 cm
17½: 19½: 22: 24: 27 inches

Yarn information:
Photographed in China 573
10, 11, 13, 14, 15 skeins
1150, 1265, 1495, 1610, 1725 yards