CRH Finds Weird Penny - Error or Post Mint Damage?

I found this strange 1980 penny while CRH. It has what looks like a pock mark just behind Lincoln's head on the obverse, and then a cluster of accumulated copper on the edge of the coin.  There looks to be a set of scratches that point in the direction of the cluster, suggesting that the material missing from the pock is instead deposited on the edge.

My guess is it's some kind of post mint damage since I'm not sure this defect could be created in the mint die press process.