Need help! RZM m7/72 88 hs662

Hi I tried looking online for more information on this weapon all I could find was the location it was made and material/type nothing else anyone know more about this weapon?

It’s a baton with a screw off metal tube with a dagger inside it.

This is the full stamp codes on the blade.
rzm m7/72 88 hs662

Many thanks!

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