1 koruna 2013

2 varianty podpisu autora. https://www.sberatelske-mince.cz/chyborazby-/13257-varianta-1-koruna-2013.html
2 variant autograf.

We just have to add 2013 with one of the 3 signatures?

I haven't personally seen them yet, but according to the link there are only 2 variants. https://www.sberatelske-mince.cz/chyborazby-/13257-varianta-1-koruna-2013.html

so which one is 2013?

Picture is not very good but I'd say these two:

They are both from 2013, thanks,

From sets

From circulation

mine is better

Nothing new, it just looks like the signatures goes on as already documented here 

Just the dates are changing, nothing new in that.