~ An interesting excursion and vignette into the cultural and traditional influence of the Portuguese upon Sri Lanka is nicely outlined at http://www.lusotopie.sciencespobord.../jayasuriya.pdf
Perhaps more to the point...an outline of the Gannoruwa battle in which the Portuguese were routed is at http://en.wikipedia.org/wiki/File:K...608-1687%29.jpg
and artwork already recorded at forum showing the type of sword is recorded there... Although this is relatively updated artwork
it does appear to have been copied from a 1693 book thus may well be accurate and in describing the lodgement of the kings sword "A Kastane" in the national shrine ...after the battle.
Ibrahiim al Balooshi.