Can someone tell me what a $50.00 face , sealed bag of 1963 , 1980 and 1978 ,one bag of each is worth ?
Hard to say, have you seen the bags in person, or know and trust the seller ? It's not unknown for the less scrupulous to re-sow bags shut after they've been searched and then sell them as originals.
I have seen them , the threads look just as original as the bag , the 78 is in rolls in a bag with the mint seal wrapped around it. And yes I do trust this person , he is a Pastor at a local church.
Then as an educated guess I'd say the '63 is probably worth 3 times face and the others 2 times face.
I was thinking about the same lines as GDJMSP, then I thought about the melt value of them. It will not be long before copper pennies are like silver when it comes to coin verus metal value.
