Due to the copper content of the coin. After 1981, Canadian 5-cents are 75%-25% Cu-Ni alloys... roll ends tone nicely too...
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert Oppenheimer
So...Does that mean SPP that if I took a 1981 or later nickel and left it in the sunlight, it would tone faster...?...Or is that sort of thinking just too far out there...?
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