Blades from Sarawak, Malaysia

[asomotif]

Did a "tourist art" industry already exist back then?

In batak (sumatra) area tourist trade existed before 1900
On Nias tourist trade started maybe somewhere in 1930's

As for these mandau's, parangs etc, pictures of the blades would be helpfull.
The handle and scabbard may be newer than the blade.

But to give my humble first opinion :

1st picture : left one looks like complete tourist to me. the others might well be contemporary examples.

2nd picture : both tourist IMHO

3rd picture : sumpitan looks tourist to me, spears, not even Borneo i think.

4th picture : podang : yep, that is the real thing. more pics of that one please...