Recipe is used 8 keys Cotton viscose.
The gown is very rule-crochet, but I did something like this:
1: Crochet 85 ch stick 3 ½.
2: Crochet tr (or tr) each. After the round.
3: Crochet tr in each, but take out of every 2 sts
4: Crochet tr in each, but take out every 3 sts
5: Crochet tr in each, but take out every 4 sts
6: Crochet tr in each, but jumping 50 meters of each side and replace them with 10 ch (= under sleeve).
7: Here begins fan pattern: * 3 dc, ch 2, 3 dc in same st, skip 3 sts, 1 dc, skip 3 sts *. Continue this until desired target. On next round. Crochet range on the 2 ch from previous round. and so on. Work to finish a game fans cuffs.
ASK finally, if something is unclear :)