The Iron Feather is the very symbol of the duality of the Griffin Duchy.

精铁之羽就是狮鹫公国二元性的最佳代表。

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Since his heirs were more respectful of imperial authority and preferred to use the Sword of the Griffin, Iron Feather was given instead to the cadet children of the family.

由于其继承者更加遵循帝国的权威，他们更偏好使用狮鹫之剑，精铁之羽则被赐给家族的次子。

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Apart from the traditional painting, there are iron picture, embroidery picture, feather picture, wheat straw picture, paper-cut and so on.

除了传统绘画，还有铁艺画、刺绣画、羽毛画、麦秆画、剪纸等等。

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Iron clubs from the 17th to the early 19th century are rare because feather-filled balls could explode if hit inexpertly.

WSJ: Collecting: Mementos of a Gentleman's Game | The Jaime Ortiz-Pati?o Collection