Execution keris panjang ? Age ??

[francantolin]

Hello,
I'd like to show you this keris,
The person who give me it told me it comes from Sumatra
( his grandfather worked there and took it back in 1920-1930 )
nobody knows if it's older or not.

I'm not a specialist in keris at all,
I made some research on internet and find it look like what they call an execution keris. (?...)
It's a long keris: blade is 55cm long ( 21.6 inches),
total length is 70cm (27,55 inches)
The scabbard is just wood with rattan but I find the carving on the wrangka really nice.

the blade is in ( not so ) bad conditions ( especially on one side cf pictures )

What do you think ?

Thank you