Vintage Bronzed Geometric Post Earring

This item is an individual studio-style post earring featuring a quadrangular, slightly asymmetrical geometric shield shape with rounded corners. The piece is constructed from a non-precious base metal with a matte, bronzed or dark brass finish. Its physical surface displays a significant amount of aged patina, characterized by mottled darkening and surface oxidation consistent with vintage costume jewelry. The construction is simple, with a metal post soldered or pressure-fitted directly onto the reverse side of the decorative plate. Notably, the post appears slightly bent and is missing the corresponding butterfly or tension nut clutch. There are no visible maker's marks, signatures, or metal purity stamps on the reverse side, suggesting it may be a boutique-made or handcrafted piece from the mid-to-late 20th century. The quality of the solder point around the post shows some minor discoloration and residue, which is a common indicator of age and wear. The overall aesthetic aligns with the Brutalist or Modernist jewelry movements, emphasizing raw textures and unconventional geometric forms rather than high-polish refinement.