What is this?

Apparently, this is a bunch of wood sticks on a black board. Then, you know what is its real usage?
Answer here tomorrow.

If you have noticed the “Four” on the blackboard, you may get the right answer. Sure, it is a clock.
“I show the progress of time by letting the numbers be written in words by the clockworks. Reading clockwise, the time being is visible through a word and readable by the completeness of the word, 12 words from “one” to “twelve”.”
Designer: Christiaan Postma