I Have Two Original Coins Of France They Are, L'Union Fait La Force 1868 Leopold To Des Belges And 1875 Five Franc Republique Francaise. How Much Are They Worth?

You can either go to your local library and look for a book called, "The Standard Catalog of World Coins 1801-1900" or you can bring them to a coin dealer. I suggest bringing them to a coin dealer for your particular coins.