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50 Yuan Mathematical Definition of Zero
| Issuer | People's Bank of China |
|---|---|
| Year | 1993 |
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| Orientation | Medal alignment ↑↑ |
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|---|---|
| Obverse script | Chinese |
| Obverse lettering | 中华人民共和国 1993 |
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| Additional information |
Issued as part of China's "History of Mathematics" series, this 1993 release honoring the mathematical definition of zero arrived during a period when the People's Bank was aggressively expanding its bullion and commemorative program to court Western collectors. The series drew on China's genuine claim to early mathematical innovation — Chinese mathematicians were using a positional zero centuries before its formal adoption in European scholarship.
At 155.55 grams, these five-ounce pieces were struck in limited numbers and saw essentially no secondary circulation, which is why survivors typically appear in original packaging with minimal handling marks.