Join Date: Aug 2007
I am not familiar with the origin of the scabbard, but assume that it was likely not rare nor special at that time. This "bangkung" was likely a farm or chopping tool and perhaps did not need an elaborate scabbard in the first place.
I am not sure if it would be appropriate to classify the scabbard as "moro" or "non-moro."
Here is a photo from Krieger's 1926 work. The basketry on the left is attributed to Basilan of the Sulu Archipelago.