The Irish comes commercii, or, Trader's-companion [microform] : containing I. exact and useful tables, shewing the value of any quantity of goods or wares ... II. tables of exchange : in two parts ... III. tables of commission at the several rates ... IV. an index to interest ... to all which is prefixed, The new table of coin, as the same was made current by the Lords Justices proclamation from the 8th day of July, 1751 : together with a table of the number of yards in the several scores of linen, from 1 to 150