Meow has found a penny with marks unlike any Meow has found before. A fairly bold stripe next to the T in cent on the reverse. Also lines that seem to be parallel to the bold one next to the T in the last opening of Memorial columns. If Meow has to guess, grooves cut into the die by feeder fingers. Meow cant think of what else it could be. What do the other here think is it? The obverse and the rest of the coin seem normal.
C’mon meow. You know to post whole photos of the obverse and reverse of any coin in question. Let’s see the rest of that coin!
But the date (since I’m not going to guess based on the FG) tells me that it’s a copper plated zinc coin, which rules out things like improper alloy mixture tat a copper cent often has. What you most likely have are plate blisters, likely complications from coating the zinc coins. These are quite common and hold no premium. Edit: Seeing both sides of the whole coin helps us see what is or isn’t there. It matters and we aren’t just being rude asking for more before guessing at a coin.
Oh darn, Meow thought for sure there was something there. It so looks like a die clash, but it isn't because the pattern is wrong. But for a plating bubbles the are very straight lines and parallel to each other. Also odd how the defect does not affect the devices, only on the fields. How could plating bubbles be so finely detailed? There are even 3 stripes 1n the space between the columns. Meow was at first thinking vice job, but the stripes are in relief. Hard to imagine random corrosion to look like that. Anyway Meow has found other keepers today for the Cat Hoard!
Still fun to keep. Collect what you like here’s a better explanation than I could give: http://www.error-ref.com/blisteredplating/
There are things that we looks at that will help in a coin attribution. It is important to show full pictures of both sides. This is why we are the specialists in these things One day you will understand.
The grooves do not line up with the design to be Accidental Die Abrasion from the feeder fingers as you suggest. The Lines you see can be caused when the zinc is being rolled to the correct thickness. I believe this is why the lines are straight and parallel. At this point any contamination can be pressed into the metal which may then cause a problem with the plating process. The lines look like they go under the designs due to the metal distortion as it flows into the design has the effect of erasing the lines from sight. This has been my understanding of Linear Plating Blisters.
By the way, even in your original pictures, did you happen to see all the corrosion on it ? Except for the excessive corrosion all over the place. and the date (which was never revealed), confirming that it's a zincoln. And what problems do Zincolns have ?? For instance, what's this ? is that an extra "1", which would have been stamped on the die? Or a plating blister? There's been a lot of linear plating blisters, some with even a few, or many, or dozens or the entire face of the coin littered with plating blisters posted in the past.