Vintage 925 Sterling Silver Abalone Shell Inlay Owl Triangle Brooch/Pendant

This vintage 925 Sterling Silver with abalone shell inlay has an Owl design. This triangle shape is both a brooch and pendant. The markings on the back shows Sterling - Mexico with SG4 in the center. There is also a symbol at the bottom on the back. The brooch has a "C" shape closure. The pendant/brooch measurers about 1 7/8" on each side. See all the picture for more details.