Vintage Nouveau Push Button Clasp 5 Chain Multi Strand Gold Tone Layer Necklace

So pretty! Perfect vintage condition. Gorgeous French Art Nouveau filigree engraved push button clasp, and it functions smoothly, properly, and securely. designed Not sure if gold plated, but could be. Doesn't look like any of the gold is rubbed off at all. Has a really nice weight to it, and doesn't look or feel cheap. Would be great for any occasion, or even for a Halloween costume or cosplay. There are no stamps, hallmarks, or markings, and I couldn't find another one of them online anywhere. See pic for measurement. Thanks for looking, and feel free to ask questions, or make an offer.