I am searching for information on 4 Nevada Palace coins "strikes" - that I have acquired. They are:

A. "1st Edition 1991" on one side and "V.I.P." on the other. Cased in plastic and in a blue box.
B. "January I, 2001", "New Year VIP", "1345" with a red stone. Cased in plastic and in a black box.
C. "New Year Millennium Celebration", "V.I.P.", "January 1, 2000". Two of these are each cased in plastic and together in a black box.

Are they worth anything? What is their silver content, if any? I thought I might be able to find a website that would give detailed information on them and indicate their value, but have not.

Thanks for any help you might have.