The federal or new ready reckoner and trader[']s useful assistant [microform] : in buying and selling all sorts of commodities, either wholesale or retail adapted to the federal money : shewing at one view the amount or value of any number or quantity of goods or merchandise from half a cento to one dollar and upwards either by weight or measure : together with interest tables, &c., in so plain and easy a manner that persons quite unacquainted with arithmetic may hereby ascertain the value in federal money or any quantity of goods in weight or measure at any price whatever.
Sower, Samuel,1767-1820.
Chesnuthill [i.e., Philadelphia, Pa.] : Printed by S. Sower,
1793.
Sabin 23977
Microfiche.
Ready-reckoners