genuine diplomatic button?

[Christophorus]

Hi to all,

Need your help to know whether this type of button is genuine or not?

I am doubtful because of the back, no maker mark whereas generally they are made by assmann...

Best

Cédric

[Kurt]

No problem with this button! I like it

[Christophorus]

Many thanks Kurt for your valuable opinion!!
Take care
Cedric