farlymac
PF McFarland
https://www.ebay.com/itm/373640461334
I'm seeing a lot of Fake ZK lenses on Ebay, Later KMZ or early ZOMZ with a phony ZK namering. No ears on the aperture ring, which was continued up to early 1951.
I have mounted Contax ZK mount barrels to much later ZOMZ focus mounts and kept the "ears" aperture ring, it fits. So even if a remount to an LTM focus mount, the aperture ring should still have ears.
Usually when I see a highly polished up lens like that, I'm pretty sure someone has cobbled it together from something else, and are trying to make it look more impressive than it really is.
PF