Yes, it first looks like a painted "M", but if you looks closer, you may find a lever like on the Zenit 4K and something like a counter window right there. The rest seems to be a early Zenit 4 (look at the frame of the window and the lethering).
I've never heard of this model and I think it will be a fake anyway. But maybe someone has more informations on this? The camera was sold on an auction (not eBay) some years ago.