Velvalee Dickinson was convicted of espionage against the United States on behalf of Japan during World War II. Known as the "Doll Woman", she used her business in New York City to send information on the United States Navy to contacts in Argentina via steganographic messages. She was finally caught when one of her contacts in Buenos Aires moved and her messages were returned.
(From: https://www.nytimes.com/2013/04/28/nyregion/answers-to-questions-about-new-york.html?partner=socialflow&smid=tw-nytmetro)
Velvalee Dickinson : the "Doll Woman" Spy by