1/2 Frank 1924 Liechtenstein

Hello friends of Numista, I would like your help to authenticate my first Liechtenstein coin, 1/2 Frank 1924, 18,1mm of diameter and 2,5gr of weight. Is there something wrong or its OK? And please comment what do you think about the Grade of this coin... Thanks a lot for all help!

The details look crude but that could be because of the grade.

And why did you put a picture of that coin in the catalog if you're not even sure about it's authenticity?

I already have many opinions about it, so I was confident to put it on numista. Thanks for your opinion.