1955-S Lincoln Wheat Die Chip Error In S & 9?

There are several types of mint errors. Die chips and breaks and such are known as "die errors" since they happen on the coin die and thus show up on coins struck after the die is damaged. This is different from "die variety" since these anomalies (RPMs, doubled dies, etc) happen during the die making process, and thus are present on every coin struck from those dies.

To CCF! Nice Die Chips.

Nice die chip example.

to the CCF

@rmpsrpms, I don't have a problem calling this an event, because it is not an error. From Merriam-Webster:
: something produced by mistake
a typographical error
especially : a postage stamp exhibiting a consistent flaw (such as a wrong color) in its manufacture.

By definition, Die Chips are not an error, so consequently they cannot be described as such.

Perhaps a better way to describe a Die Chip, Die Crack, or things of that nature would be, Die Event, specifically Die Chips, Cracks, RIDB, etc. This should apply to any anomaly that doesn't meet the definition of "error".

I believe that a die chip should not be labeled as a Mint Error.
However, with TPG companies now labeling them as such,
it is apparently becoming a trend as with this PCGS 1955 "Mint Error"
graded "minor die chip in date" coin. To me it sets a bad precedent,
but I guess it's now a thing.

It has been a thing for a long time. "Mint Error" encompasses pretty much all the things that can happen due to the striking process, including damage to the die resulting in chips and cracks and such. Many folks feel that Die Varieties should also be called Mint Errors, and there is some merit to the argument, but I personally don't agree since they are not the result of the minting process.

That said, I also personally don't think that minor errors should be listed as such. They don't add value to the coin.