This is a cool vintage sterling silver screw-top vial pendant, likely a vintage perfume vial or poison bottle/powder holder. It has an interesting braided, swirling exterior motif detail, and a foot so it could certainly stand up straight on its own when set down on a table or other surface.
The removable top of the vial has a substantial bale through which a necklace chain or other type of hanging piece can be threaded. This piece would make a fun and interesting piece of gift jewelry, and would be a beautiful addition to any collection of eclectic and unusual jewelry.
It measures 3 inches long and 1/4 inch wide. It is in excellent vintage condition with age-appropriate wear and patina.
Vintage Sterling Silver Swirl Motif Poison Bottle Perfume Vial Secret Note Stash Pendant with Screw Top