AT TIMES ADDED INFORMATION UNDER PHOTOS. KEEP IN MIND, USED, HANDLED. UN-MARK TESTED AT 12K YELLOW GOLD. BACK PIN I THINK IS STERLING. OVAL BROOCH / PIN NO AB USE OR DAMAGE.1900 GIVE OR TAKE A FEW YEARS. SETTING TEST AT 12K BACK PIN LOOKS TO BE STERLING, ORIGINAL. NO REPAIR WORK HAS BEEN DONE. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Brooches & Pins". The seller is "popo576" and is located in this country: US. This item can be shipped to United States.