Unknown fuze

[Amunicionador]

I bought this fuze as part of a lot of Austro-Hungarian WWI fuzes.
I have not found information about her. Does anyone know what it is?

Diameter approx. 76.5mm and 49mm, height 36mm total and 10mm only the rim.

 

[MINENAZ16]

Looks like base fuze M9 (used by Austro-hungarian and Czech)

 

[Alpini]

...but the austro-hungarian M9 fuzes normally have markings on the base. I don't see anything. The fuze itself is a Krupp fuze which Austro-Hungary produced ln license.

Can you meassure how deep is it from the square for the fuze key to the fuze body?

 

[Amunicionador]

Right, they look alike.
Now I can start looking for data.
Thank you very much!!!!!