2010 P Cent - The Whole Roll Is Like This - Info Please

I had a similar coin & was told it was caused by a Grease Filled Die. That didn't make a lot of sense to me so I asked for some clarification. I was told that the planchets can get those lines on them when they are made. A die with grease in it will let the lines remain on the coin when it's struck.

Hopefully someone might be able to verify and/or give a better explanation.

When the original metal stock used to create the planchets is rolled to the proper thickness, it will have fine parallel striations. This feature tends to be exaggerated on soft zinc metal. If the coin is struck with relatively light pressure, those parallel striations will still be visible. That appearance was the norm from the coins I got at the release ceremony in Springfield a couple months ago. Those marks should not affect the grade of the coin until you get into the gem grades although you still have to worry about those pesky water spots as well

The whole roll? Please tell me they were not from a mint roll!