The Sigi Pineda for Taxco mark appears on handcrafted silver jewelry and decorative items made by renowned Mexican silversmith Sigi Pineda, active in Taxco during the mid-20th century. This mark indicates that the piece was created in the famed silverworking town of Taxco, a hub for modernist and artisan silver design. Sigi Pineda was known for bold, organic forms and modernist motifs, and his work is highly collectible. The mark confirms the piece’s authenticity, maker, and regional origin, making it especially valuable among collectors of vintage Mexican silver.