Russian target circle?

[Ostmaerker]

Gentelmen, can you help me please?

I think, this object is a russian target circle for anti-aircraft mg, am I correct?

And does anyone collect russian items here?

Thak you very much!

Ostmaerker

[Gromow]

Dating from a Soviet Heavy Machine Gun DShK.
http://en.wikipedia.org/wiki/DShK

[Ostmaerker]

Dating from a Soviet Heavy Machine Gun DShK.
http://en.wikipedia.org/wiki/DShK

Thank you very much!

Ostmaerker