Silver, オニキスとマーカサイト - ネックレス - アール・ヌーヴォー様式

Art Nouveau style silver necklace with onyx and marcasites, hallmarked 925, total length about 42.5 cm and weight about 12.52 g, with marcasite measuring parts around 12 cm by 2 cm, in very good pre-owned condition with patina and wear, one marcasite broken and one missing.