Dug silver cob

[TN/SC]

Dug in southern SC using a minelab explorer xs. looking for info.
13 grams

TIA

edit: sorry for the reversed pics, thought i had that worked out

 

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[Diver_Down]

First the pictures are upside down on both. Perhaps a scan would reveal shadows that aren't apparent in the current photos? That being said, you have a Potosi 4 Reale with a partial date 7 _ 4. There is a faint "P" mintmark on the cross side, but I can't discern an assayer. The assayer would pinpoint the date range.