The Russian Mosin Nagant Forum

My cousin inherited a .22 single shot rifle, clearly Russian.

Only markings are CTPENA-3 model H-412
Unfortunately, it is missing the bolt, and rear sight.
We are hopeful we can learn what we have, then find what we need to make it functional once more.
Appreciate any help/advice we can get.

We will need some photos to have a chance.

I have a Soviet .22 single shot someplace, but mine is 1934 Tula manufacture.