A tad bit smarter than you as he has the coin in hand, all you have is the grey matter of a 14 year old! We have 12 year old's who post here who have more respect.
you can see on this 1857 how different the denticles compared to other dates . 56 and 57 had issues with this.
You can't get any healthier then Ken he takes his medicine every evening .....and I'm pretty sure he bathes on a regular basis .
This characteristic is very common on H10C and 10C LS coinage. My guess: Unc details, Environmental damage.