Looks like a Misaligned Die Strike on the Obverse side. Please.. Always post both sides of your coin to better determine what could be happening. Your misaligned strike was fairly common in the 60s and 70s and they appeared in many different forms from slight to False Double Rim.
I thought it looked like misaligned die. Sorry bout not posting back....looking through my coins found many errors. I got a little overwhelmed so I only took front pic. Now question to you paddyman....is this coin of any value since you stated it was common in those years?