This pattern can be found in the 1976 Japanese publication,
Pattern Design For Lacework 3 and was reprinted in Magic Crochet #8, August 1980, both copyrighted ‘T. Seto.’
Pattern 2 in Magic Crochet #8 Magazine.
Pattern 2 in Crochet Monthly.

No gauge nor skill level mentioned.
35 gm of crochet cotton thread No. 40.
Crochet hook No. 22, (English No. 5, International No. 1,00.)

Symbol crochet diagram is included with some written instructions.
Additional stitches include puff stitch, quad. tr, quint. tr, sext. tr, and a combination one to make a triangle stitch.

ゴールデンレース編 3集
p.65 花のロンド かわいいクロッカス 直径40cm