Canada 25 cents - mule

Normal Canadian quarters have the denomination ("25 cents") on the reverse, while commemorative quarters have their denominations on the obverse below Queen Elizabeth II's portrait. This coin was struck using a regular-style obverse die with a commemorative-style reverse die, resulting in a coin without denomination printed on it anywhere. It is unknown exactly how many such mules were minted.

The coin is prooflike and very shiny, and I did not manage to get a good scan of it. Patrick Glassford's site (see Links section) has much better scans

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