An essay on gold coin : in which certain methods are laid down to ascertain the quantity and quality of any current piece of gold coin ... with a description of several new invented instruments of various constructions, to weigh gold .. likewise in the course of the work are observations on currency in general ... with arguments to prove the necessity of a new coinage /
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| Format: | Unknown |
| Language: | English |
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London :
Printed for the author, and sold by him, and at Mr. Adams's,
1773
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