Hi Nechesh there are mandau s that look like new because they only used at cerimonial purposes .
The most newly made mandau s missing mostly a lot like
carving handle and the forging off the blade is not always like the old style even scabbards are not the way they should be.
I know A grandson From an Dayakhead man who live s overhere that was invited to a special festival in Borneo where no white people or outsiders get close to .
He was seeing there fresh tattoo s on the hands off the Ibans.
This was in the 1980 s I see a lot off pics from him that take you back to the old time.
Or are gifts and never Used
See these pics are givin to our Queens
the one with the bone was giving in 1897 to Queen Emma from the Sultan of
Kutai
The other 2 a gift also from the sultan off Kutai in 1928