Hello everyone. As I was Coin Roll Hunting a box of pennies tonight I found this penny. Its a 1958 and the Last letter "A" in CANADA is a lot thicker then on any of the other 1958's I have checked with tonight. I have included a few pictures for comparison. Please let me know what you think. Is this common?
Coin in question: The last A is thicker and the N is also thicker on the lower section. Looks like maybe a few other letters are a bit off as well? It was pointed out to me that there is also a collar strike error below the word CANADA.

Coin for comparison:

Side by side:

Thank you,
cladhunter13