VTG Silver Filigree Butterfly Brooch Pin Pendant 1950s-60s Mid Century Jewelry

Vintage silver butterfly brooch featuring intricate openwork filigree detail. Item has been acid tested and is positive for silver; exact purity unknown but leans more towards .800. Based on craftsmanship and construction details, this piece is likely mid-20th century European (1950s-60s). The brooch has an older style pin clasp and a loop so it can also be worn as a pendant. It measures about 3.5" wide and 2" tall; it weighs 19g total. Item is in good, vintage condition. It shows natural patina and tarnish from age, with light wear consistent with age, wear, and storage. Any condition notes are also pictured. Please review all photos prior to purchase.