Art Nouveau 925 Necklace Unknown Origin Hallmark

[Drsyszgy]

I have this necklace that I believe is an antique Arts and Crafts or Art Nouveau piece that I believe is from the early 20th Century. I can not locate any information about it’s hallmark or makers mark. It looks like a buck or a deer and a lowercase e with “o” and “n” inside. Images are attached.