Last Updated:2025/11/20
Initialism of die-deterioration doubling (“a common form of mint-made error on coins that results from degradation of the die used to strike the coin”).
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DDD
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Source Word
DDD
Noun
abbreviation
alt-of
countable
initialism
uncountable
Japanese Meaning
鋳造時に使用される打刻金型(ダイ)が劣化することにより、硬貨に二重の打刻が生じる現象
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( plural )