Hey, this is a (CCC) top secret charting technique used by the chinese since the 1300's to trade cattle in the Kongzang province. Apparently, not many books are available here in the west or maybe I cannot find them.
I read something similar. That smells like a bunch of cattles. Trust me. I am Chinese.
When I was nine years old in Hong Kong, my school asked us to do artworks in celebrating the concept of time being very precious. I could not believe my class copied exactly what the older class did. I feel ashamed. Why do they do that... I don't know.