I don't see any doubling, but I am not an expert on doubling. I do have some experience with pennies, however I don't see anything that stands out as important. Thanks for posting. Merry Christmas and Welcome to Coin Talk !!
Abe, I increased the image size and there seems to be something going on around the 9,6 and 8 in the date 1968. As I stated , I am not an expert on doubling (or anything else for that matter) so please allow time for a more experienced member to look at your coin. It could be nothing more than what is often referred to as machine doubling, or die deterioration.
Not a Doubled Die variety.. As stated just a Worn Die Strike No Mint Mark means it was minted at the Philadelphia Mint