Antique silver and paillon stone brooch

Antique silver brooch decorated with a yellow paillon stone and a mint green paillon stone.
This jewel appears to be an assembly of different pieces.
The yellow stone is set in a brass enclosure.
the support of the green and movable stone and consists of a plate folded backwards (forming a seamless loop).
The piston clasp does not appear to be original. Its pin is made of iron.
This brooch would go ideally on any type of thick clothing (a jacket lapel as in the photo, or that of a coat, a woolen item, a hat, etc.)

Length: approximately 4.94cm
Width: approximately 1.13cm
Thickness: 1.15cm
Weight: 4.76g

Condition :
Good. Marks of use. Oxidation of the silver and traces of soldering.
The pin has been polished and varnished to avoid marking clothes (can be removed very easily with nail polish remover). The clasp closes very well.

Delivered in a box. Return possible within 14 days.