RARE Russian PEM Sniper scope with mount, base and rings

Exceptionally rare Russian PEM optic which was originally used by Vassili Zaitsev who was the sniper “enemy at the gates” was made about. 
You just can’t find them 

Scope is in overall excellent condition. 
Comes with mount, base and the screws for mounting. 
This scope doesn’t show any of the hallmarks of the red star mountain scope reproductions and is authentic. 
I’m open to offers, shipping is okay.