The Yardage for the thread used in the pattern is unknown. I used 85-90 gms of Baroque Thread size 20 sold in India

Errata

Round 2 should read: Ch3, 1 dc in next st, * ch2, 1 dc in each of the next 2 sts, repeat from * around and join to top of beg ch3 with a dc to create the last ch sp. (24 dc, 12 ch2 spaces).

Rnd 13: Ch1, sc in same place as joining, ch3, sc in next space, ch3, 3dc in next sc, (ch3, sc in next sp) 4 times, ch3, shell in next sp, * (ch3, sc in next sp) 4 times, ch3, 3 dc in next sc, ch3, (sc in next sp, ch3) 4 times, shell in next sp. Repeat from * 4 more times. After the last shell, (ch3, sc in next sp)2 times, join to top of first sc with a dc - 6 3dc groups, 6 shells, 48 sc, 60 ch3 sp.

Rnd 16: Ch1, sc in same sp, ch3, 3 dc in next sp, ch3, (sc in next sp, ch3) twice, 3 dc in next sp, ch3, (sc in next sp, ch3)2 times, 3 dc in next sp, ch3, (sc in next sp, ch3)2 times, skip 1 dc, 1 dc in each of the next 6 dc, 3 dc in next sp, 1 dc in each of the next 6 dc, skip 1 dc, ch3, (sc in next sp, ch3) twice, 3 dc in next sp, ch3, (sc in next sp, ch3)2 times, 3 dc in next sp, ch3, (sc in next sp, ch3)2times, 3 dc in next sp, ch3, (sc in next sp, ch3)2 times] Repeat around ending the last repeat at , ch3, sc in next sp, join to first sc with ch1,dc – 90dc, 18 3dc groups, 48 sc, 72ch3sp.