I read that many of these were struck with the same force as the CN variety. Does that explain the artifacts around the four? I've included a few images.
I see, so this coin was struck when the die was almost new to have this degree of doubling. Good article, thanks!
The area on the "4" is from a defective digit punch. These show up an nearly all CN cents from the same date. Rick Snow explains this well in his attribution guide.