You will need 7 buttons. Rowan used #BN1564 from Bedecked in the UK.

Finished measurements:
Bust circumference: 35.5(40, 43.5, 47, 51)“ 90(101,110, 120, 130) cm
Finished length: 23(24, 25, 25.5, 26.5)” 59(61, 63, 65, 67) cm
Sleeve length to armhole: 12(12, 12, 12, 12)“ 30(30 ,31, 31 ,31) cm

Yarn used:
Rowan Valley Tweed:
A. Wolds Poppy 107 - 5(5, 5, 6, 6) hanks
E. Bedale 106 - 1(1, 1, 2, 2) hanks

Rowan Felted Tweed
B. Peony 183 - 1(1, 2, 2, 2) balls
D. Ginger 154 - 1(1, 1, 2, 2) balls
E. Iris 201- 1(1, 2, 2, 2) balls

Rowan Alpaca Soft DK
F. Autumn Purple 208 - 1(1 ,2, 2, 2) balls

Rowan Kidsilk Haze - used double throughout
C. Burnt Caramel 680 - 1(1, 2, 2, 2) balls