Vintage Navajo Sterling Silver Coral Black Onyx & Turquoise Hummingbird Brooch

Vintage Navajo Sterling Silver Coral Black Onyx & Turquoise Hummingbird Brooch Underside of brooch is stamped "Sterling". No visible maker's marks, but appears to be Native American (Navajo) made. Brooch measures approximately 1.6 inches long by 1.25 inches wide (at widest points). Weighs approximately 6.95 grams. In good condition with no noticeable flaws. All gemstones are present & intact. Silver has some patina as expected with age & wear, but can be polished if you desire. Please see all photos.