It was featured in Handy Hands, Winter 2012 news letter. This issue of the news letter was from: "Tatting" by Penelope, Bk 4. The thread is Anchor's size 10 metallic crochet thread, in white with a gold filament.
this is an interesting tatted piece ... sort of antique but could be layered with other pieces to make it more boho.
@Mary Lee Lane apparently there is a market for tatted necklaces!