The ready reckoner; or trader's most useful assistant, in buying and selling all sorts of commodities ... In so plain and easy a manner, that persons quite unacquainted with arithmetic may hereby ascertain the value of any numer of hundreds, pounds, ounces, ells or yards, &c. at any price whatever ...
Fenning, Daniel.
London : printed for John Taylor,
1790.
Only p.238, 239 are numbered.
ESTC
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