Estate Sale vintage spider pendent necklace

This was purchased from a high-end sale with multiple other pieces. I could not find any comps on this necklace. If you look at picture five, you’ll see that it has two holes where you loop a necklace through. I have a brooch that is similar listed on my page for sale as well. I only found one necklace that was even similar to this, and I included it as a comp. I also included some photos from the estate sale posting. Please inbox me with any questions.