1st Dime - Damaged.. Maybe by lawnmower 2nd Dime - Environmental Damaged 3rd Dime - Acid Dipped melted copper edge And Looks like you have a 4th Dime - Spooned
What you’ll learn is the money is used in circulation and all sorts of things can happen to it. You might want to search and learn how money is minted. This will give you insight on how coins are created and what the limits are in relation to damage at the mint. To list what damage can happen to coins after it leaves the us mint is unlimited.
Lesson for today: To - is a preposition which begins a prepositional phrase or an infinitive Too - is an adverb meaning "excessively" or "also." Two - is a number. (Not trying to be rude. Just trying to help) As far as learning what your coins are, I think everything has been covered already.