Silver necklace

Silver 16in necklace just polished it was really tarnished. It doesn't have 925 stamped but I did a test on it to see if it was real silver and it tarnished right away. Pick 3 will show you after test of tarnish. Pick 4 is polished again. Please see pics for details. Thank you for looking in my closet and feel free to make an offer or bundle to save more.