1993 D Lincoln Cent: Are These Extra Columns?

If they are gray in color, it is split plating. On the Extra columns, they are more towards the center of the bays. There are 4 normal false columns.


These often get polished away. But the real DDR's are more in the central areas of some of the bays:

As the die age, the die polishing also affects these as well:

Other DDR's:



Moving more towards the center bay areas:

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Copy of the steps on the center bay:



Affecting the center bay area in different strengths:

Identifying these can be be tough. Strength, height, locations all much match the listed examples. (I still have 5 tubes, that I've not matched up yet) So there are a lot of these out there.

CoopHome: What new DDR's started on the 1990's cents? referred to as 'bar Cents." These are easy to find on many of the post 1996-2008 cents

I find seeing is a lot better than reading. If I described in words, the interest fades quickly. Be seeing, that is a different story, and paints a different set of words for each observer. But understanding the process, it the key point. If you understand how these can happen, then you look for it on the coins you search. Look for the varieties with your eye of understanding of how it could happen on die creation. Not all dies are created equally. Thus, they are the varieties we seek. Become familiar to what can happen in circulation (damage to a coin). When you figure out that not every coin will be an error or variety, then you can sort out the spenders and keepers faster. (keep in mind also of a the thousands of people have already looked at those coins already.)