Help to identify old family china.

Hi.

This china has been in our family since the 1890 and since my mother passed away it has just been sitting on it shelf.

My mother only used it for very big occasions,  I can add that I have never been served anything with this 

 I cant find any stamps or marks on it.  Can it have faded away over the years?

Im trying to find some history that can give me an idea about age and what they could be worth. I do not dare to use them yet

Thank you :) 

Kind Regards Pernille