Circulation wear and tear. Nicks and gauges caused by the Nickel banging around inside pockets, cash registers and coin jars.
@Marites Foertsch thank you for taking the advice to post FULL IMAGE photos as it makes it so much easier to enlarge and view. All of your coins are PMD, Post Mint Damage. They happened after it left the mint, but keep on looking and questioning what you find. Good luck.
Circulation wear and tear. If you look closely at the tip of Jefferson's nose you can see it took a hit. The metal has been pushed outwards and it's worn from circulation.