Vintage Filigree Brass Open-Hoop Post Earrings

This is a pair of vintage-style open hoop earrings featuring an intricate cutout filigree pattern. The earrings are constructed from a yellow-toned metal alloy, likely brass or a brass-plated base metal, exhibiting a dull, aged gold color. They are medium-sized hoops with a broad band that tapers slightly towards the ends. The decorative aspect consists of geometric and curvilinear openwork, also known as pierce-work, creating a lattice-like appearances. The earrings are designed for pierced ears with standard post backings and small butterfly clutches. Regarding condition, the items show significant signs of age and wear. Most notably, there is visible green oxidation (verdigris) concentrated around the junction of the post and the hoop body, which is common in older costume jewelry containing copper. The surface finish is uneven with some tarnish and brownish patina developmental in the recessed areas of the filigree. There are no visible maker's marks or metal purity hallmarks, suggesting these are mass-produced costume jewelry pieces rather than fine jewelry. Based on the style and the type of oxidation, they likely date from the late 20th century (1970s–1990s). The craftsmanship is characteristic of commercial fashion jewelry of that era, utilizing a stamped or cast metal technique for the decorative pattern.