Civil war era bullet and possibly a coin ?

I found these today at a park where the land was given to the city in 1894 for the sole purpose of being a park.
What it was prior to that I don't know.

I found the bullet at 8 It is flat on the bottom with the exception of a small dimple where the gate was cut off.
Could this be a civil war era bullet?

The coin on the right in the second picture is made of copper and as you can see it is smaller than the wheat used for comparison. it is slighter thicker than the wheat. It is worn smooth on both sides. Not even sure it's a coin ?

Could this be a coin and if so any ideas as to what it could have been?

Thanks for help on an ID.

T bullett doesn't have the normal age (white) patina lead gets, I don't think it is that old. I have found many modern bullets like that deep too in parks (they still make the same bullets), but you never know about fill brought in.

The other item, could be a coin, probably foreign? :dontknow:

The bullet isn't old, it takes about 60 years in the ground to turn white, I can't help you with the button/coin.