Antique brooch, USA, patent 1908, silver and silver plated

Exquisite antique brooch.
The reverse side bears the stamp of the American patent of April 1908.
Decoration with a charming ornament, on the edge of the decor with natural crystals of rock crystal or paste. The central element, presumably, is a natural stone. I did not wear it to the gemologist, I sell it as it is.
The metal part is tested on the reagent as silver, but of different samples. Silvering from 925 to 800 samples. There is no stamp on the silver. Steel brooch needle.
The clasp is C-shaped, works very well, holds securely.
Metal scuffs and micro-scratches on the central stone. No sign of repair.
The decoration according to the patent is 115 years old!
It is still beautiful, looks noble, aristocratic and has a special historical charm.

Video brooches blog www.livemaster.ru/topic/3528590-blog-video-antikvarnaya-brosh-ssha-patent-1908-goda?inside=0&wf=0

Article No. 1836
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