Mine fuze for id please German WW2

[Rrickoshae]

Good morning, please see the attached photos of what imagine to be a mine fuze of some sort. The prongs are for fairly standard use but why are there electrical wires? Also, the aluminium part has a hole through it so it might be a drill fuze?
any thoughts from the mine experts out there?

many thanks, Dave

 

[Fusse2004]

I believe these are fuzes for coastal mines that are electrically detonated in unison. I have attached a photo of the fuzes alongside some sea buckthorn, from the former collection of Peter Kunz (the collection is on display in Overloon).