how do we classify a weapon tourist,origin,time period ?

[Jens Nordlunde]

I see what you mean, but the way the collectors are, old as new, I think it will be difficult to change.
The best to do when it comes to discussing weapons is, to provide good pictures, and a good description.

With the keris' like with the katars, there are so many variations that a classification will be more than difficult - unless it is a very rough one.