The top on is a Nova Constellatio copper, though I cannot determine the value from that pic. The bottom two pictures I cannot determine at all, though they look a lot like "Machin Mills" copper halfpennies, and if that date says 1788, that's probably what it is.
I'm sorry I was just showing my finds lol I know what they are the half penny is 1738 the first post was blurry like the top pic so I hope that you could see them better