In original auction listing it was going as part of the William Herbert McGinty collection. Collected between the late 1800's and early 1900's, in storage since 1930's.
I don't thrust auction descriptions much, and it looks like quite later then early 1900's kris to me also, yet could we expect a separate Ganja on a post WWII example?
It seems to be evident that pointy luks appeared already around 1900:
http://www.vikingsword.com/vb/showth...aranao+sundang