It might at first sound a little far fetched but could these European/ German? blades we call Kaskara appear in the Malay and Borneo region as a consequence of the Napoleonic French interest in the region. I only thought of this as I have a Batak sword with the long unfullered 1795-1815 dragoon sabre blade. Napoleon installed a Dutch governor in Bali. The British keen to stop any further French influence may have been supplying a great amount of blades.
