This category is within the scope of WikiProject Chemistry, a collaborative effort to improve the coverage of chemistry on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ChemistryWikipedia:WikiProject ChemistryTemplate:WikiProject ChemistryChemistry articles
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This category is within the scope of WikiProject Numismatics, a collaborative effort to improve the coverage of numismatics and currencies on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.NumismaticsWikipedia:WikiProject NumismaticsTemplate:WikiProject Numismaticsnumismatic articles
