1974 cents exist in both date sizes for all the coins except the proof - they are all large date. None of any of the six different business strike possibilities are difficult to find, which is one reason why most people don't know they exist because none of the books publish the information.
The most obvious differences between the two are the sharp, pointed square-end of the inner loop of the 9 on the small date compared to the rounded inside of the 9 on the large date, as well as the same with the tip of the 7...small date is sharp, large date is very blunt. Additionally, the motto (IN GOD WE TRUST) nearly touches the rim on the large date, while there is some clear space between the two on the small date.
MorgansRMine - You are correct - I don't post much here, or anywhere else for that matter. I have become very busy tring to eek out a living, and just don't have time for the boards much. Things will turn around for me at the end of the year, but until then, it's constant work for me.