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.
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?
