I finally bought a LC-A! Unfortunately it arrived broken:( Shutter advance stuck. After 3 hours of tinkering with the shutter advance mechanism (under the bottom plate) it was fixed!
However, some random metal part fell out from inside of the camera! I have no idea where it belongs but the camera seems to work ok. You know it's Russian made when: (1) it arrives broken, (2) parts fall out, and (3) it still works!
I tested it out with a roll of expired Ilford FP4+. Pictures aren't anything special but now I know that it works.