How were socks knitted before the Kitchener stitch?

​I was reading about grafting and why it is called the Kitchener stitch. It's named after Field Marshal Horatio Herbert Kitchener, 1st Earl Kitchener (June 24, 1850–June 5, 1916). Wikipedia says "In addition to his military work, Lord Kitchener contributed to efforts on the home front. The knitted sock patterns of the day used a seam up the toe that could rub uncomfortably against the toes. Kitchener encouraged British and American women to knit for the war effort, and contributed a sock pattern featuring a new technique for a seamless join of the toe, still known as the Kitchener stitch." (https://en.wikipedia.org/wiki/Herbert_Kitchener,_1st_Earl_Kitchener) My question: Would anybody know what kind of bind off was used to create the "seam up the toe that could rub uncomfortably against the toes"? I tried looking for pre-WW1 sock patterns, but couldn't find any. PS: Some of Kitchener's alleged actions during the Boer War would qualify him as a defendant at a war crimes tribunal, but that's a discussion for another subreddit.