Heart Necklace 12" Gold Tone Chain Heart Pendant Vintage Resin or Plastic

This vintage heart necklace belonged to my mother. It has a heart pendant and about a 12" chain. The chain is gold tone and has darkened in several places. I have not attempted to clean the necklace. Just located in a box as we prepare to move to warmer and less taxed climes. Please look at all the photos and ask any questions before you buy. I try to describe everything the best I can. Thanks for stopping by and taking a look