I don't believe that created things can be Perfect in the sense of entirely flawless under infinite magnification. I do, however, believe that a thing is perfect when that thing does or is what it is expected to do or be. I know for a fact that I'll never own a Perfect coin, in the first sense, but I already own coins that have brought me endless hours of pleasure just looking at them. To me, a certain coin would be perfect exactly because it has a kind of specific beauty that no other coin in the history of the world has. And incidentally, as many here have said, things considered by some to be imperfections (such as die cracks) are highly valued by others. I have a 1989-S proof
Roosevelt dime that somehow slipped into circulation and wound up in my pocket. Even though it's luster is dull and its mirrors hidden and it has virutally no value higher than the 10c that it purports to represent, this coin has a kind of subjective perfection: I love this coin and look at it often, and I use it as a kind of practice model for learning how safely to handle perhaps more objectively valuable coins. Anyway, that's my ten cents.