Unidentified fuze

[Thal]

Hello there.
This fuze has been in my house since my first memory but nobody could tell me where it comes from or which kind of ammunition it belongs. I searched for any clue on the internet but found nothing at all that could solve my doubt. As far as i know it may even not be part of WW2, if this is the case, i do apologize. During my researches i found this forum so i decided to ask for any help here.
Here are some photos.















Thank you all.

[florinox]

It's an Austrian m12a fuze for 15cm mortar m80 used in ww1.

[Thal]

It's an Austrian m12a fuze for 15cm mortar m80 used in ww1.

Thank you very much.

Do you know if there is any wiki/book/compendium where i can find more data about this piece?
I am really curious about the material of the top part.

[spotter]

there is a manual here on scribd you may find useful Notes on austro-hungarian fuzes - UK - 1917

[Thal]

there is a manual here on scribd you may find useful Notes on austro-hungarian fuzes - UK - 1917

Very useful, thank you.
Think i found it.