Well...I googled around and found another site where you had posted more pictures.
It's redware...and at least 100 years old it appears.
Rough and quite crude clay judging by the areas it seems to have chipped away.
But I can find nothing that would suggest it's Russian? What makes you say that?
Russian wine jugs were silver or finely made stoneware....but of course nothing says some potter couldn't have made a very crude and rough jug.

In short...I can't tell you much...but maybe the people at the link below can.
Linda C

Here is a link that might be useful: Russian antiques