Cryptography. Or a new, easy, and compendious system of short-hand, ... By Swaine and Simms.

London : printed for the authors, & sold by C. Henderson, J. Fuller, A. Webley ; Z. Stuart ; & S: Williams, 1761.

[4],xxxv,[1]p.,plates ; 80.

ESTC T118774

Electronic reproduction. Farmington Hills, Mich. : Thomson Gale, 2003. (Eighteenth century collections online). Available via the World Wide Web. Access limited by licensing agreements.