CANADA. Mint Error -- Struck on 5 Cents Planchet -- 25 Cents, 2015. Elizabeth II. PCGS AU-58. cf. KM-1852.1. An intriguing piece showing a 2015 commemorative quarter struck on a planchet intended for a 5 Cent piece. Lightly handled, but still argent and very wholesome, and about as interesting as a mint error can get.