About 15 years back i took an Erma (cant remember Iver Johnson stamped on it anywhere though) .22 Lever action as a part trade on an old Shotgun.
Well it was a pain in the A$$ as no matter what brand of ammo i tried the lifter would not work unless i worked the lever very slow and most of the time i had to dig the fired case out with a knife.
I ended up selling it to a kitchen table gunsmith that wanted it with the problems.
Last time i saw him he was still shooting it as a single shot as parts were not available then.
I am pretty sure it was stamped made in Germany.