Vintage Jewelry Mesh Chain Metallic Silver and Gold Tone Metal Layered Seashell Necklace. This is a really cute layered Seashell necklace. The shells are a thin metal and the chain is some type of mesh that almost feels like fabric (it is very soft). The shells are feel like tin. In good vintage condition may show minor signs of wear due to normal use and age. The chains measures 18 inches Princess Length and the largest shell (bottom one) measures approximately an inch and a half and then they get smaller in size. Shipped with USPS First Class Mail.