戴戒指的习俗可以追溯到古代埃及、中国，它不仅作为一种信物也是一种装饰品。
The custom of wearing the ring can be traced back to ancient Egypt, China, it not only as a chop is a decoration.
铁券是古代帝王赏赐给勋臣或重臣的一种带有盟约性质的信物。
The iron credential, which the emperors award to their official's records or in important position, is a kind of authenticating object with the feature of oath of alliance.
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