This is a lovely, vintage pair of clear rhinestone earrings likely dating between the 1930s and early 1950s. The elegant earrings are made to resemble diamonds in a glamorous drop, chandelier design. The backing is screw back, clip style (see photos). I am unable to find a maker mark and don't know what the metal composition is but do not see a mark indicating silver. Best guess on a date would be 1930s to 1950s as the back and style were popular during that time frame. I purchased the earrings over 35 years ago in an antique shop. The antique rhinestone jewelry is in lovely condition, with all rhinestones in place and screw back freely turning. The earrings measure about 2.75" x .75". Box in photo not included. The gorgeous earrings have a "vintage Hollywood" look and are a perfect accessory for a formal event or wedding. For More Information: https://www.thesprucecrafts.com/antique-vintage-earring-styles-4101844#:~:text=Screw%20backs%20were%20more%20prevalent,mid%2Dcentury%20surge%20in%20popularity.