The "VOC" 1755 "Dutch Duit" coin is also known as a "New York Penny" and are around $10 to $15,
they were used in the colonies before we minted our own money.
The other piece I believe is a Dutch "Hard times token" of sorts, probably used in the area from where it was struck. Value - $15 to $30
The medal, I have no clue other than it seems to be Swedish??
Cool finds!
HH
Lonewolfe