The fractional calculator, or, new ready reckoner : shewing at one view the value of any quantity of goods, from one-eighth of any weight or measure to thirty thousand, at any price from one thirty-second of a penny to twenty shillings : with discount tables from 85 to 95 per cent : being particularly adapted for merchants, lace manufacturers, cotton and commission agents, drapers, &c. &c.
John and Charles Mozley
Place of Publication
overall: 1/2 in x 7 1/2 in x 7 in
"B. Goldney N4 St Pauls Ch Yd London 1855, Counting House" written in ink on first fly leaf. Various other writings and calculations written on the inside fly leaves.
Gwen Bell early book collection of algorithms, tables, and history of calculations
The Gwen Bell Early Book Collection of Algorithms, Tables, and History of Calculations