1、
This Commemorative Medallion is made of gold-plated copper with a diameter of 50 mm.
此枚纪念章为铜质镀金,直径50毫米.
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2、
3、
To mark its rarity, each Crown Jewel piano has, as a final touch, a special medallion.
每架皇冠珠宝系列钢琴都有一个特别镶饰徽章以彰显钢琴的稀有珍贵，犹如点睛之笔。
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