Dear Prasanna,
In your post #254 you showed an old and presumably Sri Lankan patissa.
Quite some time ago I posted 2 of my patissas:
http://www.vikingsword.com/vb/showthread.php?t=6012
Do you think they might be Sri Lankan as well? Will you hazard a guess re. their age?
They are made out of bloomery steel, the earliest and the most primitive way of obtaining enough material to hammer into a blade.