THIS IS A NEW 53-54-55-56-57 CHEVY PASSENGER CAR INSIDE REAR VIEW MIRROR. THIS IS A NICE REPLACEMENT ORIGINAL STYLE NON DAY & NIGHT  STYLE MIRROR THAT WILL SCREW INTO THE ORIGINAL BRACKET. THE BACKSIDE IS POLISHED STAINLESS STEEL AND INCLUDES THE CHROME JAM NUT FOR ATTACHING TO THE BRACKET.