Russian Civil War Cap?

[Poteto]

Hello everyone,

I am interested in purchasing this Civil War hat however I am unsure of its authenticity, Civil War items are fairly rare so I was hoping you could help me with identifying it. There doesn't seem to have any markings on the hat. Thank you for your answers.

[Philippe]

For me, no good.

[Poteto]

Thanks for your answer Philippe, any reason as to why it isn't? Thanks

[Philippe]

inside, sweatband, badge ..