Mills Silver is FAKE· Mil is a term used to indicate a thickness of silver/gold plating Until February 2010 we had not heard of the term mills silver At that time though the CMC Mint started mass producing many different bars of a base metal and labelling them 100 MILLS 999 FINE SILVER 1 TROY OZ or 100 Fine Silver 1 Troy Oz Ounce or 1 OZ 100 FINE SILVER or 100 MILLS