Is this a real military button, or a wannabe? Age?

[testing123]

Two piece button that measures about 7/8" wide and the back is rusted. The middle part is pushed in a little, which is why it looks a bit odd. Is this a real military button, or just something that looks like one? Thanks for any help you can provide!

 

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[duggap]

If the back is rusted, the likelyhood is that it is a fashion button. Often see on mens blazers.