Leif:
      
      You recently linked this thread in discussing another Apalit knife. I'm sorry I did not respond to your initial post--better late than never I guess.
      
      Thank you for posting this example of a 
tabak with an Apalit hilt. I have not seen such a combination before, and I associate the 
tabak more with Ilokano examples, sometimes with a 
sinan kapitan hilt (the head of a guy in a military cap). This same blade style is seen in a Negrito weapon form that Fox* labeled as a 
katana and which he says was used for combat.
      
      Very interesting mix of styles on your knife.
      
      Ian.
   
    
   * Fox, R.B. 
The Pinatubo Negritos: Their useful plants and material culture. Philippine Journal of Science 81: 260–361, 1952. [For a transcription of the text and copies of the figures, see 
here.]