19th century Latin American fighting knife?

[RobT]

wildwolberine,

I don't see any features on this knife or sheath that are inconsistent with the Philippines. The "squared guard" that M ELEY pointed out is not uncommonly found in Philippine daggers. I also note that the general shape and the slightly kopis edge is also commonly found on the so called "Philippine bowies". That "Del Sr" signature you show could actually be an abbreviation for Del Sur which refers to Illocos Del Sur in the Philippines which is a main manufacture site for Philippine bowies.

Sincerely,
RobT