Hello Charles,
agree, the look and feel is like a utilty knife and they are sometimes very fancy and decorated and I like them very much! And I see a lot of similarities with the sangi knives from the Bagobo, they comes sometimes also very fancy.
And you have also some very nice examples:
http://www.vikingsword.com/vb/showth...ghlight=siraui
Regards,
Detlef