What does the end of penny production mean for novelty penny press machines? Collectors say it might change how the machines ...
WASHINGTON – News that Canada is doing away with the penny has renewed debate in the United States about whether it’s time to rid itself, too, of a piece of currency once described by an esteemed ...
Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...
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