I agree that this one is not necessarily from the Indonesian Archipelago. HOWEVER, in Anthony Tirri's book, Islamic Weapons: Maghrib to Moghul
, there is a picture of the identical sword (but with a blue background) that he calls a parang beng kok
from Bali (see fig. 300B, p. 424). That sword is not mentioned in van Zonneveld's encyclopedic reference on Indonesian arms, so I would guess Tirri is likely incorrect. Nevertheless, it is the exact same sword that you show in the post above.
Based on the shape of the pommel alone, which is the initial subject of this thread, there is a passing similarity to a Tengerrese sword that was discussed here a few months ago. See: http://www.vikingsword.com/vb/showthread.php?t=18718
Despite the comments to date, I would not dismiss an Indonesian origin just yet based on the shape of the pommel alone. Let's see the rest of the actual sword first.