BIBLIOGRAPHY
Wikipedia「Great Debasement」「Gresham’s law」「Thomas Gresham」
Wikipedia (according to the sources of each article)

Claims Supported by This Source
- 1544–1551, for the cost of war with France and Scotland.
- The silver on the portrait's nose wore away, "Old Coppernose".
- Withdrawn from circulation by Elizabeth I in 1560.
- The name "Gresham's law" dates from the mid-19th century.
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