Art Nouveau-style silver-tone dragonfly pendant and chain

This item appears to be a decorative pendant on a fine-link necklace chain. The pendant features an elongated, tapered teardrop or triangular frame with openwork filigree. The central motif is a stylized dragonfly with four vibrant green wings, possibly made of enamel, glass, or polished stones. The rest of the design consists of organic, scrolling foliate patterns consistent with the Art Nouveau aesthetic. The metal has a bright, silver-colored finish with noticeable dark oxidation or tarnish in the recessed areas, which provides depth to the intricate metalwork. The chain is a delicate box-style link with a small lobster-type clasp visible at the top. While there is a small rectangular bail connecting the pendant to the chain, no hallmarks or maker's marks are legible in the image to verify metal content or origin. The construction appears consistent with jewelry produced in the mid-to-late 20th century inspired by late 19th-century motifs. Overall quality appears to be decorative or boutique-grade, and the condition shows minor surface wear and patina throughout the metal surfaces.

Based on the provided description and visual characteristics, I am evaluating this Art Nouveau-style silver-tone dragonfly pendant and chain as a decorative vintage piece, likely produced in the mid-to-late 20th century. I can observe the intricate openwork filigree and the vibrant green accents on the wings, but I cannot assess the exact material composition—such as whether the wings are enamel, glass, or stone—without a physical examination. Furthermore, because no hallmarks or maker's marks are visible, I must treat the metal as a silver-tone alloy rather than solid silver. My estimated appraisal value of $30 to $75 is based on the working assumption that this is an unmarked, boutique-grade piece of costume jewelry. If physical testing were to reveal that the piece is crafted from sterling silver or features precious materials, the value would likely increase. Market demand for costume dragonfly pendants is steady among collectors of vintage aesthetic jewelry, but prices remain modest for unmarked items. To establish the exact material and origin, in-person examination and chemical or electronic metals testing by a qualified professional would be required. The current valuation reflects its appeal as a stylish vintage accessory rather than an authored antique.