2-strand silvertone paperclip necklace, NWOT

I assembled this from 2 different necklaces, hence the closure where I added a larger lobster clasp and a small one, for ease of use—but they could be easily removed using pliers. One chain is Park Lane and I forget about the other one. Not sure if one or both of them are stainless steel or if the metal is what Park Lane uses. BUT they look nice; the links are not weak or flimsy.