You have found some great stuff! That more rounded style spoon that you have there could be as old as the 1500's or 1600's! Look up "seal top spoon" there may be a makers mark on the bowl of it that could get you a rough date on when it was made. No idea what that 1776 coin is but it looks interesting. Is that a tank tread? Looks like you have some great history in your area!