Mis märk?

[otofoto]

...

[Venepoeg]

Looks Государственное ополчение Сибирского военного округа. Other Ополчение's badges must be on the hat. Or could be Лейб-гвардии 4-й стрелковый Императорской Фамилии полк, but must be on the hat as well.

[otofoto]

...

[Venepoeg]

Гвардия.

[otofoto]

Thank you!

[Venepoeg]

Better I ask someone else cause I'm not sure what's unit and why that badge.

[Venepoeg]

That is impossible combination of details so that guy wear it just to take nice picture for send it home. Even not a guardsman, probably. But hat is guardian.