This free pattern originally published in:
Spool Cotton #132, Irish Crochet Lace 
1st row: Ch 72, turn; sl st in 16th ch from hook, turn.
1st row: Ch 72, turn; sl st in 16th ch from hook, turn.
Starting at center, ch 8, join with sl st. 1st rnd: 12 s c in ring; join.
1st row: * Ch 10; in 5th ch from hook make s c, ch 4, s c, ch 4, s c. Repeat from * for desired length. Ch 5, turn.
Starting at center, ch 15, join with sl st. 1st rnd: 26 s c in ring. Join. 2nd rnd: Ch 4, * d c in next s c, ch 1. Repeat from * around.
To begin, ch 33. 1st row: D c in 7th ch from hook, * ch 2, skip 1 ch, d c in next ch. Repeat from * to within last 2 ch, ch 5, skip next ch, s c in last ch.
Materials: Clark's O.N.T. or J. & P. Coats Mercerized Crochet, Size 50, White. Milward's steel crochet hook No. 12.
Ch 6, join. 1st rnd: Over a cord (or 4 strands of same thread), make 10 s c in ring. Join and let cord hang.
Work 4 petals as for shamrock No. 8415-G, but make 8 s c in ring and omit stem. Cut cord only.
Starting at tip of leaf, ch 15. Hereafter work over a cord, or 4 strands of same thread.
Starting at tip, ch 15.