unknown soviet scope, help

[bichon]

Hello
do you know this ?
thanks for answers
cordially
Didier

[Dimas]

It' a sight for such a kind of gun

[meyerse]

It is part of an aiming circle which goes on a tripod (I believe) For artillery. I do not know all the direct gun mounts so it could have other applications. You are missing much of it. You have part 10.
What I have shown is just one version.
Also made in 1941, with no obvious refurbishment mark but you are missing so much of it this means little, but the color is interesting.

[bichon]

Hello
Thank you very much
cordially
Didier