With circular needles, cast on 110 (121, 132) sts.

Work even in Garter st (k every row) until piece measures 4¾ (5, 5½)” from beginning, end by working a wrong side row.

K26 (29, 32) sts for Right Front, bind off 6 sts, k46 (51, 56) sts for Back, bind off 6 sts, k26 (29, 32) sts for Left Front.

Place all sts on a spare needle.

With knitting needles, cast on 22 (28, 30) sts. 

Begin Garter st and shape sleeve by inc 1 st at beginning and end of every 16th (8th, 10th) row 2 (5, 5) times–26 (38, 40) sts.

Work even until piece measures 4¾ (6, 7)” from beginning, end by working a right side row.

Bind off 3 sts at beginning of next 2 rows. Place remaining 20 (32, 34) sts on holder.

Row 1 (Right Side): Knit.

Row 2: K8 (9, 8), [k2tog, k5 (6, 6,)] 17 (19, 21) times, k2tog, k7 (9, 8)–118 (152, 164) sts.

Row 3 (Buttonhole Row): P2 (2, 3), yo, p2tog, p to end.

Rows 4 and 5: Knit.

Row 6: Purl.

Row 7: Knit.

Row 8: K7 (8, 7), [k2tog, k4 (5, 5)] 17 (19, 21) times, k2tog, k7 (9, 8)–100 (132, 142) sts.

Rows 9 – 13: Repeat Rows 3 - 7, omitting buttonhole.

Row 14: K7 (8, 7), [k2tog, k3 (4, 4)] 17 (19, 21) times, k2tog, k6 (8, 7)–82 (112, 120) sts.

Rows 15 – 19: Repeat Rows 3 – 7.

Row 20: K6 (7, 6), [k2tog, k2 (3, 3)] 17 (19, 21) times, k2tog, k6 (8, 7)–64 (92, 98) sts.

Rows 21 – 25: Repeat Rows 3 – 7, omitting buttonhole.

Row 26: K6 (7, 6), [k2tog, k1 (2, 2)] 17 (19, 21) times, k2tog, k5 (7, 6)–46 (72, 76) sts.

For sizes 12 and 18 mos only

Rows 27 – 31: Repeat Rows 3 – 7.

Row 32: K6 (5), [k2tog, k1] 19 (21) times, k2tog, k7 (6)–52 (54) sts.

For all sizes

Knit 1 row even.

Next Row (Buttonhole Row): K across row to last 4 (4, 5) sts, k2tog, yo, k2 (2, 3).

Knit 3 rows even. Bind off.

Sew sleeve and side seams. Sew on buttons to correspond to buttonholes.

Row 1 (Wrong Side): Knit.

Row 2: Purl.

Rows 3 and 4: Knit.

Row 5: Purl.

Row 6: Knit.

Rows 7 - 12: Repeat Rows 1 – 6.

Work even in Garter st (k every row) until piece measures 3 (3½, 4)” from beginning, end by working a wrong side row.

Bind off 19 (21, 23) sts at beginning of next 2 rows–13 (19, 21) sts. 

Continue even for 3½ (4, 4½)”, end by working a wrong side row. 

Bind off.

Fold bonnet in half and sew seams on each side of center back panel.

With right side facing, pick up and k45 (55, 61) sts across lower edge of bonnet. Work 4 rows in Garter st. Bind off. 

Cut 2 lengths silk ribbon and sew one to each side, folding cut end under twice. Attach ribbon rosette as desired.