[drac2k]

I recently picked up this Colonial Mexican Sword; I know it is Mexican because it is inscribed "Lupe Padillia Sayula," which is located in Mexico.
The mystery to me is that the pieces don't logically fit together. The sword has a massive blade, 29.5" long x1.25"x3/8" at the base of the spine; it is exceptionally heavy. It has an old guard that to me appears too small for the sword as well as an old ivory or bone handle that also seems too small for the large blade.
Everything appears to be old and tightly fitted, so my question is could this be an old blade, refitted with a lighter guard and handle, used for display, much as the English would have Victorian copies of weapons on the walls?