you are very welcome I thought after all the "quote" errors we have seen so far a real error would be a breath of fresh air
strictly speaking they are varieties as they evolve in shape and size as the die wears further with age. You can trace the stages of die wear through them, early, mid and late die stages.
I guess it’s debatable. The egregious ones could be considered errors since they never should have left the mint. Little ones are probably not