cover name

By the time that he landed in New York early in June, 1915, Sir Edgar Speyer had good cause to be well aware that the Government was strongly opposed to any communication, direct or indirect, with enemy country and to all attempts to evade the censorship of letters and cables, whether by the use of code words or cover names;

1941, Richard Krebs (as Jan Valtin), Out of the Night, New York: Alliance Book Corporation, Chapter 31, p. 493, The map of Germany was in my head—its cities, rivers, railroad schedules. I memorized a long string of names and cover names […]