Nüshu 女书 : a female only chinese-script

The Chinese counter-part of Japanese “Hiragana : Nüshu 女书

https://qz.com/1271372/what-the-worlds-fascination-with-nushu-a-female-only-chinese-script-says-about-cultural-appropriation/

I recalled in the 1950s my illiterate grand-mom and aunties in the kampong (village) used to write in a form of “女书” numeral characters for betting on private lottery (十二支): eg.

\phi = 50 \text { cents}