I have a MOCKBA 5, and are tooling up to put it to good use, after som TLC.
Mine is a bit worn, but I guess people had other things on their mind in the 90's than taking good care of their picture taking machines.
I have a hunch many of them where put to semi-professional use in USSR too, since the big negative allowed for some less-than-perfect darkrooms around in the empire.....
I also had the pleasure of working with a MOCKBA 4, which was a dandy, in a travelling camera project limited to only 8 particapitants. Nice and sturdy camera, that no doubt was a fine picturet aking tool when it was new.
I rate the MosKva's alongside of most german folders, save for a couple top brands, Zeiss was mentioned, Adox stand to be mentioned and Franka too. I have heard reports that users rate the optics on their Moskva as better than run-of-the-mill Zeiss nettars with their 4,5 lenses, but cannot verify that.
EP