Based on style, construction and marking I would date this brooch 1930's-40's. Like most of the sterling silver jewelry of this perios the brooch is maked STERLING. Birds to me look similar to 1940's sterling bird pins by Coro Craft, but it's just a wild guess. In excellent for its age condition, barely any signs of wear.PLEASE VISIT MY STORE FOR VINTAGE AND MODERN GLASS, POTTERY, CRYSTAL, COLLECTIBLES, JEWELRY AND MORE! That said bear in mind that vintage pieces are often not perfect. Either because they were not perfect when they were made, many by hand, or because they carry some signs of being used, displayed or kept in storage. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Brooches & Pins". The seller is "harajuku_doll" and is located in this country: US. This item can be shipped to United States, Brazil, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, Korea, South, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Norway, Saudi Arabia, Ukraine, United Arab Emirates, Qatar, Kuwait, Bahrain, Croatia, Republic of, Malaysia, Chile, Colombia, Costa Rica, Panama, Trinidad and Tobago, Guatemala, Honduras, Jamaica, Antigua and Barbuda, Aruba, Belize, Dominica, Grenada, Saint Kitts-Nevis, Saint Lucia, Montserrat, Turks and Caicos Islands, Barbados, Bangladesh, Bermuda, Brunei Darussalam, Bolivia, French Guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman Islands, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Macau, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Uruguay.