Abstract
SILVER. IN this country medals have been issued for centuries with the tables or flat surfaces smooth and mirror-like, while a more or less frosted texture has been given to the portions in relief. This is especially the case in medals which have been struck as specimen pieces, for after highly-polished dies have been used for a certain time the difference between the appearance of the tables and the parts in relief becomes less and less marked.
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Treatment of the Surface of Medals1. Nature 58, 236 (1898). https://doi.org/10.1038/058236b0
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DOI: https://doi.org/10.1038/058236b0