Hello everyone,
I don't know anything about it and can't find anything online!
Is this coin (see picture) a misprint?
These two “bobbles” cannot have been caused by damage, as they point outwards.
Thank you in advance for a helpful answer!
(3 votes)
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I have already seen such coins, that is corrosion/red, on the outside a corroded layer can still be sprinkled when the coin e.g. for a longer period of time in dirt and moisture, but if due to a material defect the grate has punctually also eaten inwards, such “explosions” occur.
This cannot go back to a stamp error, because such damage to an embossing stamp would immediately be noticed and the damaged coins would be destroyed immediately.
This is more of a damage and no misprint.
The cent coins are not massive of copper or copper alloy, because that would be too expensive. On the other hand, have a steel core and are only coated with copper. That’s why they’re magnetic.
The copper coating simply dissolves on the two bubbles.
A very clear N E I N.
The coin has an iron core with a thin copper plating. If this thin copper layer is damaged, and moisture penetrates, this grate pickel forms under the thin copper plating.
Such outwardly extending bulges can only arise during embossing if there are breaks in the stamp, which then cause a depression there and an increase on the coin during embossing. Because of the hardness of the stamp material, these are rather small and round and not as semi-circular as left. With a deepening in the middle, as it can be seen right.
Such balancing is usually caused by corrosion in the core of the coin, which consists of iron. That’s what they call the frost.
Only oxidation and circulation traces.
No, unfortunately not.
No, it’s just damaged.