I would go with a EF details on the 21. As others have said, you can see definition of the breast feathers. On grade lower than EF the Breast is slick. And actually with the weak strikes these are known for I MIGHT go AU details but the hair and cotton balls are worn down a bit tooooo much...or are very weakly struck. I know this is sacrilige to a lot of people but I think that is one coin that would be OK to dip!!!