I have been trying to find out info on a wehrpass I have picked up. In particular 1.Pi.-Minier-Kp. or Pi.-Minier-Kp.821. I am sure that someone on the forum is well versed in such units and can tell me what such units actually did, and maybe even have a feldpost number for the unit. I have done all my usual serches and drawn a blank, but would be delighted if anyone had any info that might help.
All the best,
D

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