1954 s error on obverse date

[Ipojlc]

The nine has an error

[mustbebob]

You are correct. This is a die chip. Coins from the 50's have many cracks/chips that lead to filled letters/number, BIEs etc. There are some people that collect these and also try to find what we call progressive errors. That is when you can identify the beginnings of a die chip or crack and can follow the trail of how the error progresses as the die strikes coins. This can be a fascinating part of the hobby.

[Ipojlc]

Where can I read more about progressive errors. Thank you again

[mustbebob]

I do not know if there are any writings about progressive die errors. All you do is find other coins from the same die and compare them. In the older decades when they made 5000 count bags, you may get a couple of different die states of the same coin. We can use you coin as an example. Obviously, the die wasn't made like that. Over time, a tiny crack formed inside the loop pf the 9. After a few thousand strikes, the crack gets bigger, and a die chip forms. After a few thousand strikes more, the chip gets bigger and bigger. The damage continues until the die is pulled from service. Remember that progressive errors are simply a way to observe how continued striking affects the look of the coin...especially cracks and chips.
Somewhere in my collection, I have a few examples of some die progression errors. If I can find them, I will post some pics for you.

[Ipojlc]

Thank you again I can't wait

[BEANCOUNTER]

I have a 1956 like that. Lincoln 1956 date reverse 9 cud.jpg Sorry I can't help with your search.

Beancounter