This is a single size pattern that also includes a cardigan and a shawl.

Measurement at underarm (cm then inches)

Sweater and cardigan 91 (36.5)

Yarn

There is no yardage given but the yarn requirements for the sweater are:
18 25g balls of Woollybear Fine Cotton or
15 25g balls of Woollybear Pure Silk or
12 ounce (28g) hanks of Woollybear Real Shetland
all by Patricia Roberts

Pattern with yarn purchase was available from Patricia Roberts shop in London