Miniature PLM, RK & KvK - Help Please!

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Several years ago, I purchased these miniatures from the estate of a local man who collected medals and decorations of all countries from 1927 until his death in 1996. He was also one of the first members of OMSA. All in all, there were over 2,000 pieces in his collection, including a few "repros" here and there..
I submitted some pictures of these to the German Dagger forum a few years ago, but got few responses. Now I’m hoping the experts on this forum will be able to provide a little more information. I am curious as to their originality, and as to their value.
I hope these poor pictures are sufficient for your determination.

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The case contains no markings that I can see.

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Another

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x

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The PLM - Obverse

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The PLM - Reverse

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The RK - Obverse

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The RK - Reverse

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The KvK - Obverse

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The KvK - Reverse

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The only markings that appear anywhere on these pieces are on the lapel button of the KvK. Along woth the LDO, it reads "Steinhauer & Lück, Lüdenscheid".
Thanks guys,
Any comments will be appreciated.

[Harry]

V. nice! Is the case custom made to house these pieces? Could you post a pic of the case interior without the lapel pins in it? The case exterior looks imperial??

[Darrell]

Wow the detail is incredible

[dag001]

Here you go, Harry

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Closeup of the lid interior.