Tunny, designed by Joanne Scrace, is part of Eden Cottage Yarns The Bletchley Collection.
The inspiration for the design comes from the cogs of the Lorenz cipher machine or ‘Tunny’ as it was also known.
While having the appearance of a vintage fair isle look only one colour is used at a time.
S (M, L)
To fit head circumference: 20 (22,24)cm / 7.75 (8.5, 9.5)in
Finished brim circumference: 19 (21,23)cm / 7.5 (8.25, 9)in
Finished hat body circumference: 26(28, 30)cm / 10.25 (11, 11.75)in.
Tools / Materials
3.5mm (US E/4) crochet hook.
3mm (US C/2-D/3) crochet hook.
22sts and 12 rows to 10cm (4in) in treble crochet using 3.5mm hook or size needed to achieve gauge, after blocking.