Is this a coin you found detecting? If so, I vote banner! What kind of help do you need? If you're uncertain if it's genuine, it's worth getting graded and slabbed.
Are you yanking our "chain". After 2 years of lurking on this site I can't help but chime in on this thread. You have just posted two of the most collectable coins in US history. You need to have them checked out by a professional and if real have them graded and slabbed then insure them and lock them up in a safe. If you plan on selling them you need to contact the reputable auction houses to get the best audience and most money for them. For your sake I hope they are real. Keep us posted.
dug coin - coin taken out of the ground
banner- the strip at the top of each page that shows the best finds by the members of this site
slabbed- put in a holder by a grading company that determines grade and authenticity
I dont see a seam indicating a cast or electrotype. I would send it to a certification company to get it authenticated. It could be a five figure coin.