Natural Amethyst Link Bracelet, Vintage, Handmade

Vintage handmade link bracelet. With natural amethyst stones of light purple/ lilac / lavender color. The closure has three settings, so it closes at 7", 7.5" and 8". All links are securely soldered. The top part, around the stones, looks like sterling silver, but I can't find any stamps. The bottom base metal is different and looks like, possibly, silver plated brass.