'A TALE -AND TUTORIAL- OF THREE COLLARS' - Pattern Making / Drafting - Under & Upper Collar so that edges look great and the under-collar does not show. From: http://www.fashion-incubator.com/archive/a-tale-and-tutorial-of-three-collars/ See also: Pt 2 blog post: http://www.fashion-incubator.com/archive/a-tale-and-tutorial-of-three-collars-pt-2/