Mystery Box Vintage Jewelry 15 pieces - necklaces, some with matching earrings

Mystery box of jewelry from estate sales. Primarily necklaces, some with matching earrings. This box includes: 11 necklaces (some marked and some unmarked), 4 necklaces with matching clip-on earring sets. Various lengths. Lots of neutral colors. 15 total pieces. Used condition with wear commensurate with the age of these pieces. All wearable. When the necklaces are marked, it is usually with "Japan."