The flat braid. I am so sorry for not fixing this earlier. But in the interest of all braiders, I would like to correct that statement. In all actuality that braid is suppose to be a rectangular braid producing a boxed look, or on the sides a 3 strand braided look. Mine are not like that. But I have since found literature in a couple of Argentine books and within the Encyclopedia of Rawhide Braiding. I also have found out how to accomplish this braid by accident. LOL... I will take a few snaps of the braid I am working on when I finish it and if it looks good I will post it here.
This technique of braiding was done by other braiders. The first publication that I could locate was in 1921 by an Argentine braider. I have only found 2 other Argentine books that have this technique in it. Both describe the same methods. As well, I found the technique listed in the Encyclopedia of Rawhide Braiding. There was not much in the way of information. But gave a pretty good description of how to do this technique.
Brian...