1991 P Nickel Lines Behind Liberty & Date

Die Attrition Error. Here is a more dramatic example

I check with Mike Diamond and here is what he mentioned about this one:



It's nice when he says he's stumped. I thought it was planchet damage pre-strike. But he ruled that out as well. But mentioned a point I hadn't considered before: "If it were planchet damage you'd expect the lines to show on top of the letters as well."

Hmmm, I was thinking it could have been on the planchet first. And the pressure of the strike flowed the metal into the recesses of the letters. But since the field outside of the letters experiences relatively little metal flow, it wasn't enough to close up those lines there.

Then I remembered this incomplete clipped planchet that I've attached. The planchet wasn't clipped all the way through so on the strike, the only part of the clip (the line on obverse) that close was at the rim. But you can see on the reverse that did not happen with the letters.

I agree with what Mike and Coop wrote. These images are instructional in that regard.

Indeed, Coop. Thanks for clarifying my post. I had submitted the images in support of what you and Mike had written as a contrasting example of what OP's coin is NOT (i.e., even if the incuse lines were on the planchet before strike, they would still show up on devices such as it did on my coin. Not the case in OP's coin.)

Thanks, Coop.

Cool beans, Coop. :)

Do you have the cent you posted as a die attrition error. I enlarged the image and it's not an attrition error. I feel it is a thin layer of grease hear the rim. Take a toothpick and see if that is the case. On an attrition error the edge of the die is worn off the edge of the die. The edge makes of the die is closer to the devices. I don't see that on your coin. Take a look at the image I posted above:

Note how the rim is closer to some devices and farther way from other devices. (when I enlarged you image I noticed it was like that) Let me know if it is grease as I don't have an image of the grease near the rim. Yours will so do well. The crease accumulates along the rims of coins. Note sure why? But it does on some coins.