When they went to the super cheap copper plated zinc cents, you get things that look like errors. Plating blisters, and I assume the split plating that Paddy mentioned does not carry a premium.
Both of these 2 guys are exactly correct. Let me just add..... Split Plating Doubling (error-ref.com)
Not an error of any kind. What you are seeing is split plate doubling and it’s very common on zinc cents.
