Law's mercantile cipher code for forwarding business communications by telegraph, telephone or postal card, with secrecy and economy [electronic resource] : in use by subscribers and attorneys of the Canadian Reporting and Collecting Association.
Toronto : W.A. Law, 1880.
Codes chiffrés et télégraphiques
Cipher and telegraph codes > Commerce.
|Locate a Print Version:||
Find in a library
- Full view (original from University of Alberta)