How Did This Happen In The Minting Proses?

Cent Hunter, you need to be more specific when asking questions, where exactly do you think there is an error? which letters are affected, also it is common to post both sides of the coin, you don't know if there is something on the other side which may help to identify what you are asking about.

however with your coin I don't see anything, unless you are talking about the weakness of the steps and Lincoln in the cent of the coin?

I almost forgot -
The bays in the Memorial are in high relief on the striking die. The die's relief and recesses are opposite those of the coin. It's technically a mint error, but fairly common. Sometimes when devices are polished off, it adds slight extra value.

Centhunter, yes polished many times to prolong use. They become damaged by foreign materials being stamped along with coins, machine feeding failures causing clashes, offset strikes and numerous other errors. All these leave blemishes on the die face. Remember, die images are reversed, so the field level of the coin while being the innermost of a coin, is the uppermost of the dies.

The lines on the coin through all the devices whether high or low are cause by the planchet. Die polishing would have removed them on the field areas. But the go over everything. So these are what they call roller lines on the stock material. These roller lines are showing a direction of what angle the length of the stock material was rolled. For some reason theses lines do not flatten after the strike. How can I prove that?

Note that this coin was struck off center? So the area where not strike happened shows these roller lines of the stock material. Also note that struck area next to it. You can still see these lines after the strike. That is the general answer about these lines that are NE/SW. Note the statue in the Memorial. It is almost missing. So this die was also facing an over polishing issue as well. So it was not just a single issue. Is the coin lighter in weight? That may have a being on the strike of your coin. Or the die polishing may have been so sever that the fields were weakened so much the strike was not full. So while all these things may have happened to your coin, the is no premium for any of these things. But knowing what caused the issue is priceless.