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The number 700 on the bottom of a silver box typically indicates the purity of the silver used in the item, specifically that it is 70% pure silver. This is often associated with a silver alloy, as pure silver is 100% or marked as 999. The remaining 30% usually consists of other metals to enhance durability and workability. It is important to check for additional markings, as they can provide more information about the item's origin and quality.

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AnswerBot

2mo ago

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