Hi, I was directed to this forum by one of your members.
I found a large amount of nickels with the same die crack in an uncirculated bank box. In the entire box I found roughly 350 of them in the various stages of the die crack. I have been able to narrow it down to four distinct stages that are below. I did some research and I was able to find an
ebay listing with a circulated coin with the exact same error, so I know that this is not contained to my one box.
Here is the listing: https://(Offsite URL shortening not allowed-2018-09-28)/sjA1Vj
The box I have is dated July 11th and was pulled from a bank in Ohio.
Stage 1: Slight crack with no building contact.

Stage 2: Crack extends to make contact with Monticello.

Stage 3: A large rectangle appears on the crack.

Stage 4: Crack fully forms.

At first, it looks like a tree or bush is added to the design when looking at it with the naked eye. Stages 1-3 are fairly faint and would be worn away in circulation, but Stage 4 is fully formed and will stand up to circulation.
What would you do with all of the coins that I have? Has anyone else found any of these? Any input would help, Thanks.