Sigi Pineda ~ Vintage Taxco Sterling Mid Century Modernist Boomerang / Crescent Moon Tie Tack / Lapel Pin discount

This nicely designed sterling tie tack was made in Taxco, Mexico by Sigi Pineda. It's in good vintage condition with light wear. It secured with a push back in good working condition. It measures 5/8 inches by 9/16 inches, I put an discount old dime in one of the pictures to give a perspective of size. It features a crescent moon or boomerang against a glossy black patina background. The tie tack is slightly concave. The back is hallmarked with a worn Sigi Tasco, 47, eagle #35.