Nix Sign is in anywhere.
It's the question.
Which is correct?
There are many views about this mark .....
・made a design of "NO"
・added "N" in ○
But what derivation of diagonal is "N" is probable,
so correct answer is No.1.
it is not unified authoritatively
so there is some signs of No.2.
When I drew pictures by using Nix sign,
I checked it out which is correct.
I found out interesting truth! lol