Just received my one piece interupter/ejector from Finland. It fits and works, and frankly doesn't look like it's ever been installed before. Guess Finland must have pallets full of misc spare parts for Mosins. Heck, it turns out they are still issuing a Mosin Nagant based sniper rifle in 7.62x53R to active duty troops.
I was in too much of a hurry to put in the rifle, I didn't get a chance to take a picture.