Rear sight base, model 1895 Russian contract Winchester. Used. Original part

Description

Up for sale is a rear sight base with spring, no attaching screws and no pin in this set.
It was taken of Russian model 1895 Winchesters.
Made in the USA for Czarist army in 7.62x54R caliber.
I am not sure if it will fit other caliber M1895 Winchesters.
The part is in a very used condition.
Looks usable to me, but please consult an experienced gunsmith before use to be sure.
Will definitely require some restoration, cleaning and fitting.
Will ship anywhere where these are allowed.