They are usually base metal counterfeits. Check to see if they are magnetic. If they are, you know they are either steel or nickel which means they aren't silver and therefore a bad counerfeit.
My partial coin collection http://www.omnicoin.com/collection/gxseries
My numismatics articles and collection: http://www.gxseries.com/numis/numis_index.htm
Regularly updated at least once a month.
My numismatics articles and collection: http://www.gxseries.com/numis/numis_index.htm
Regularly updated at least once a month.




















