Understanding 1960's sweater pattern instructions

I am knitting a sweater pattern from the 1960's. Here is what my pattern says:

RIGHT FRONT

Using no. 8 needles cast on 59 stitches and work in moss stitch thus:
1st to 4th rows: *k1, p1, rep from * to last st, k1. **
5th row (buttonhole row): k1, p1, k2tog tbl, wfd, k1, * p1, k1; rep from * to end.
Work 4 more rows in moss stich. 59 sts.
Next row: p4, * inc by purling into front and back of next st, p8; rep from * to last 10 sts, inc in next st purlwise, p2, (k1, p1) 3 times, k1. 65 sts.

WORK IN LACE PATTERN

1st row: (k1, p1) 3 times, k6, * wfd, k2tog tbl, k1, k2tog, wfd, k5; rep from * to last 3 sts, wfd, k2tog tbl, k1.
2nd row: p to last 7 sts, (k1, p1) 3 times, k1.
3rd row: (k1, p1) 3 times, * k3, p1, k3, wfd, sl, k2tog, psso, wfd; rep from * to last 9 sts, k3, p1, k3, wfd, k2tog tbl.
4th row: as 2nd row.

Repeat the last 4 rows twice more.
Work 4 more rows in pattern.

Next row is buttonhole row. Continue in pattern working a buttonhole as before on next and every following 22nd row until 5 buttonholes have all been worked.

Work 8 more rows in pattern thus finishing at side edge. (then the pattern starts the decreasing for the armhole)

HERE IS WHERE I AM STUCK: Do I go back and follow the instructions for the first buttonhole that is already done (5th row above in Right Front section) or am I supposed to incorporate some type of buttonhole in the lace pattern? And, am I assuming correctly that instead of telling me how many rows to knit until I reach the armhole, the pattern is telling me to do a buttonhole every 22nd row and I'll know I have reached the armhole after I've done 5 buttonholes?

I so greatly appreciate your help. This is a vintage pattern and while I'm able to find terminology online, it is difficult to find anything that answers like those I asked above. If you need more information, please let me know.