This design is featured in the Rowan Autumn Newsletter.

https://knitrowan.com/en/news-events/newsletters/rowan-ne...

Finished measurements:
Back width: 19(21, 23, 25, 27)“ 48(53, 58, 63, 68) cm
Total length: 21.5, 22, 23, 23.5, 24.5)” 54(56, 58, 60, 62) cm
Sleeve length to underarm: 17.5” for all sizes, 44(44, 45, 45, 45) cm

Yarn used:
Rowan Felted Tweed Aran
Shade 719 Granite - 12(13, 14, 15, 17) balls