Listing aboriginal items.

Hi there,

I was wondering if someone help me in regards to listing a couple of Aboriginal items which seem to have all sorts of rules and regulations. They're left to us from a Deceased estate so we don't have any identifying or authenticity certificates. I have 2 grinding stones?, I have a wooden lizard carving and also another bigger stone that could have been used for cutting. 

Thank you very much.

Debra.