Austria, Imperial. A First War Patriotic Badge

In silvered metal, a round disc with a detailed pattern, the obverse medallion is gilded, presenting a black enamelled eagle with Austrian coat of arms on the chest, the reverse presents a single horizontal pin, measures 40.7mm (w) x 40.8mm (h), weighs 11.2 grams, enamels intact, light wear around the exterior, in very fine condition.