The Espada ancha was used in all the presidios of the northern frontiers, including those on my state, almost as arid as the sonorean. I canīt disclose much information about the espada ancha, as a friend of mine, in my state, is making a research on this weapon, and I donīt want to anticipate on his work. Much of the information I have, comes from this source. And of course, from the espadas anchas I have seen here, on the hands of friend collectors. The espada ancha has not a fixed type, there are variations. As I understand the old manuscripts where the characteristics of the uniforms and weapons of the presidio soldiers are established, have some mentions of this point. But there was, also, heavy bladed short machetes, as the espadas anchas, and this fact permitted the confussions. But this is another subject. Latter I will post the machetes, but all of them are modern. I use them as working tools. I can trade them for shashkas or other dagestani weapons, you know...
Regards
Gonzalo