Many attribute manufacture of these style swords to the region of Ceylon (Sri Lanka) or Java. They obviously show some European influence and this is believed due to the Dutch who settled in the region (hold-overs from the Dutch East India Company). I could be wrong on this as it could be some variant of a kampilan; it has also been suggested these style swords show Spanish influence and deemed to be from Spanish Morocco (obviously more research is required). More recent research has lead me to believe these were used by the Cuban Army under Spanish control, circa 1891 and refered to as the type Guanabacoa (a municiplality near Havana); intended for use on horseback, as with cavalry. I would consider these quite scarce if not rare.
Overall length is ~40-3/4". Long 35-1/2" straight single-edged blade with clipped, angled "klewang-style" tip; silver overlay sandwiched onto blade ricasso; brass hilt with rudimentary "clamshell" counter-guard, stirrup-style knuckle-guard, four finger-grooves of an unknown brown material, rudimentary horse-head pommel.