The Espada Ancha-

[Jim McDougall]

This is an example of espada ancha that has been claimed to be of San Luis Potosi/ Guanajuato regions (just northeast of Mexico city). This is noted in "The Unique Swords of Old Mexico" (Bill Adams, "knives '85" , DBI Books, 1984.).

These hilts are distinctive for overall metal hilt with downturned pommel which nearly meets the half knucklebow. Many of these have zoomorphic terminals.
The Potosi region was closely connected to caravan trails northward from Mexico City to the Frontera regions of Arizona and into Santa Fe, N.M.
This one was found in Tucson.

Note the uptick and sharp point on the blade, which seems to have become notable in early 19th c.on these 'machetes'.