Hi Sid. This is a Java golok (Sunda) likely from Tjipatjing or Tjikeroeh villages. This area made a large range of high quality weapons both Indonesian and European styles often stamped with village name (abbreviated) and date (usually late 19C to early 20C).
http://www.vikingsword.com/vb/showthread.php?t=948 Here is one that I have.