leather belt cross strap RZM M/5/71/9 ?

[all1knew]

Hello all,

I have never seen a marking like this and the leather looks extremely new to me. Can anyone please tell me if this cross strap is authentic? It came with two other leather pieces, what are these called as well?

Any help would be appreciated!

thank you.

William Kramer

[all1knew]

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[all1knew]

showing length (though adjustable)