1871 CC Seated $1 with added mint mark on Ebay
This coin looks like it has a crudely added mint mark. It doesn't match the shape nor positioning of any known 1871 CC, of which there is only one reverse die. I contacted the seller with my suspicions 3 days ago but have been ignored. Take a look, and if you agree, report it. It's already up to $2025 with a little more than a day to go.
Pic for posterity: