This art nouveau style dress clip is not marked, but does appear to be quite old. It has beautiful filigree engraving on the clip. It also has an old watch hook finding on the back which can be used as a small bail so it can be hung on a chain. It has a patina and wear from use, but is still in good shape. A few of the topaz colored rhinestones appear to have been replaced, but this does not detract from the beauty of the clip. It measures a large 3 x 2 inches.