Offered is a lovely vintage necklace. It is collar style Mexican Sterling Silver with a black stone. The necklace was created by master silver artisan, Sigfrido Pineda. It is signed Sigi Tasco, marked with the design number 270, and also marked Made In Mexico Sterling, and has the eagle 3 mark. The inner measurements are approximately 4.3" across and 4.7" long. Lovely look!