Liberia 2004 $20 commerative silver content? Weight 20 g, 40.3 mm.

Anyone have the Certificate of Authenticity for this coin

? I have looked through the Numista catalog and NGC listing and can't find any information.  Interested in ASW or purity.

Silver 999, same as all other from this series:

https://en.numista.com/catalogue/index.php?r=&st=1-2-3-47&cat=y&im1=&im2=&ru=&ie=&no=&v=20.0&cu=&a=&dg=&i=&b=&m=&f=&t=&t2=&w=&mt=&u=&g=&se=4028&c=&wi=&sw=

You can add this coin to Numista, just duplicate any other page and update the reverse description, lettering and few other fields amd add your photos.