EK1 L/18 screwback original or not?

[Badto666]

Hello! Found this out for sale and I wonder if it´s original or not. I don´t have any better pictures fore the moment but I wonder if you ppl here can judge something with this pictures. It is mm L/18.
thanks.

[Anubis]

Fake...

[militarymania]

possibly one of those Russian or Latvian fakeroo's

[Badto666]

Thanks guys

[booboo252]

I thought all 'round 3' variants were pin back?