SIMPSON (Stephen) & WISE (Edward). The Readiest Reckoner ever invented, for assisting the Tradesman, the Merchant, the Gentleman, &c. in finding the price, of any number from one to ten thousand......1811

London: Printed for Sharpe and Hailes, First edition, 12mo, v, [319], 13pp. of advertisements at end, contemporary full green vellum, with the bookplate of Lady Mary Stewart.