HEAD
Cast on 9 sts using 3.5mm needles and Yarn A.
Row 1 and all foll WS rows Purl.
Row 2 (RS) K1, (kfb) 8 times. [17 sts]
Row 4 K1, (kfb, K1) 8 times. [25 sts]
Row 6 K1, (kfb, K2) 8 times. [33 sts]
Row 8 K1, (kfb, K3) 8 times. [41 sts]
Rows 9 to 19 Beg on a WS purl row, work in st st.
Row 20 K8, (ssk, K2) 3 times, K1, (K2, k2tog) 3 times, K8. [35 sts] Row 22 K8, (ssk, K1) 3 times, K1, (K1, k2tog) 3 times, K8. [29 sts] Row 23 Purl. Cast off.