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I would agree with the opinions so far. This is an early 1900s Maguindanao blade with 1950s hilt and scabbard. The hilt looks to be made of chased and filigree nickel silver and brass/bronze pieces. As far as the scabbard is concerned, the wood appears to be palm wood(?) and the mounts perhaps silver plated tin(?).
However, if you etch the blade, you might find laminations in it. And yes I do see a separation line on the ganga, not an engraved line (a good sign of being a more quality blade usually).
By the way, are those measurements in inches or centimeters?
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