Crochet Terms: US
Abbreviations: st – stitch, sl-st – slip stitch, ch – chain, sc – single crochet, hdc – half double crochet, dc – double crochet, tr – treble crochet, fp – front post, bp – back post, bl – back loop, tbl – third back loop. cluster of 4dc – yarn over, insert hook into indicated stitch or space, yarn over and pull up a loop. Yarn over and through 2 loops. Repeat 3 more times in same stitch or space. 5 loops on hook. Yarn over and pull through all 5 loops.
ROUND 70. Join with a standing tblsc in any last dc of the side before corner ch1 space (R70.1), *in ch1 space (sc, ch1, sc) (R70.2), tblsc in next 183 sts (R70.3)*, repeat ** 4 times, omit last tblsc. Join to standing tblsc with a sl-st.
Stitch count: 732 tblsc, 4 ch1 spaces
ROUND 71. ch1 (does not count), sc in same st, *sc in next st, in ch1 space (sc, ch1, sc), sc in next 2 sts (R71.1), (ch1, skip next st, sc in next 3 sts, ch2, skip next 2 sts, cluster of 4dc in next st, ch2, skip next 2 sts, sc in next 3 sts (R71.2)) 15 times, ch1, sc in next st*, repeat ** 4 times, omit last sc. Join to 1st sc with a sl-st, fasten off and secure ends. (R71.3)
Stitch count: 384 sc, 68 ch1 spaces, 120 ch2 spaces, 60 cluster of 4dc
ROUND 72. Working in back of round 71 join with a standing sc in any last skipped sc of round 70 of the side (R72.1), *ch3, working in back of round 71 sc in ch 1 space of round 70 between two sc made in same ch1 space, ch3, working in back of round 71 sc in skipped sc of round 71 (R72.2)(R72.3), (7tr in ch2 space of round 71, fptr around cluster of 4dc, 7tr in next ch2 space), working in back of round 71 sc in skipped sc of round 71 (R72.4)) 15 times*, repeat ** 4 times, omit last sc. Join to standing sc with a sl-st, fasten off and secure ends.
Stitch count: 68 sc, 8 ch3 spaces, 840 tr, 60 fptr