Thank you for submitting your item for appraisal. This appears to be a fish scales or dragon scales style choker consisting of lobed punched brass
sheet-metal elements with traces of gilding. It might have been inspired by hellenistic laurel leaf jewelry and could be dated to the second half of the 20th century. This type of fashion jewelry has a precursor in folk art of the 19th century, but judging from how this piece was made, it should be vintage 20th century. The estimate is based on similar offered or sold at auction.