Alright, here is more details of this wonderful language.
The writing systems.
As I mentioned before, each of the four classes has their own writing system. 3 of these are taught to the Ni'ver children at school before they are assigned to one of the four classes when they turn 17. The common people has a writing system that is similar to the Latin alphabet except it is customary written with a lots of curves. The burghers has a writing system that is basically an abjad similar to the Arabic writing system. The writing system of the lords spiritual is rather unique. Their writing system basically consists of glyphs, each representing a particular idea or a thing. And last but not the least, the upper class has a writing system that resembles Sanskrit.
The Eide Numbers uses a base 12 system which means that there is 12 individual numerals in the language.
Bigger numbers are expressed by combining the numbers. For example, the number 13 is itar-rei (one-zero).
More details to come.
In our system, there are 10 numerals from 0 to 9, and this system is base 10 (decimal).
There are 13 numerals from 0 to '12'. Your number system is base 13 (tridecimal) instead.
If you want a base 12 (duodecimal) system, the numerals should stop at '11'.