Gm30 Kriegsmarine with Feldpost and unusual KM stamp

[hagen.191]

Hi guys. I just got hands on this gm30 mic gas mask. The faded tag says "M53441" that identifies it as a member of the last german "Nachtjagdleitschiff" Togo. Has anybody seen that stamp at the inside front before? Not the typical KM eagle.
Thanks for your help.

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