Very cool. I wonder how far back it goes, because Madame Defarge and other women in The Tale of Two Cities are depicted as doing exactly this during the French Revolution
Ranger
During the 2 World Wars, women in Europe used knitting for spying, including encoding messages with combinations of knits/purls...find out more in #UnravellingWomensArt the 1st @womensart1 book, along with many more wonderful and sometimes weird textile art facts....!
