Yes Maurice, i am also surprised that there aren't more opinions on this piece. Just for comparison look at the reprousse work on the sheath of this sundang which some have also identified as Malay. To my eyes i see a similar floral design that seems quite unlike Moro okir.
You can see the rest of this sword here:
http://www.vikingsword.com/vb/showthread.php?t=11708