I don't know anything of its provenance and the handle is probably not original. The blade is 14.75 inches (37.5 cm) long from tip to the start of the handle. Although I am not an expert, the marking on the blade appears to indicate that it is made of forged steel.
This would be a straight example of a keris or kris dagger from the region of Indonesia. The typical blade in this form is wavy, but straight ones can be seen on various sites such as this discussion at vikingsword.com.
You can see both straight and wavy ones on this image from Thomas Stamford Raffles (1781-1826) The History of Java Volume I.(1817)