fuze flugelmine 240mm ???

[FZG76]

Does anyone has any information on this fuze, which I think and associated with flugelmine 240mm

 

[kz11gr]

Bonjour

J'en ai trouv une comme a il y a longtemps.
Je ne sais toujours pas ce que c'est. Je pense que c'est allemand.

A+

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I've found one like this a long time ago on the battlefield.
I don't know what it is.
German i think.