There is nothing wrong with what Sandon stated. He is just trying to help you but you have to help us first.
I would have stated almost the same thing if he had not beaten me to it. Posting in the proper forum is the
best way to get more eyes on a question, in fact I have asked a moderator to move it to the proper forum.
Also posting a clear photo of both sides of some of the coins is the best way for us to see what we are dealing
with. Usually any coin with great value has been certified so to find one loose raises questions.
You say that NGC values them at $43,000 but don’t forget that those would be certified and high grade. Unless
you are able to grade them yourself, then those values would mean nothing. In the coin world, condition is #1.
If you are going to require any additional help, then please as Sandon asks, supply a clear photo of both sides of some of the coins you think are valuable and we can go from there.