Mystery silver from field

[Goes4ever]

I dug this small silver coin (I think) last night in a field. I have found several 1800's coins here. The only thing I think it could be is a worn out 3 cent silver.....I laid it beside the 3 center I dug this year. when I lay it on top it is exact diameter, I weighed it and my scale isn't exactly high tech but it says 0.8g.....anything else it could possibly be that size and weight?

 

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[SouthJerseyJim]

That would have stopped my heart to find! Very much looks colonial...1/2 reale? OHH maybe a 1792 DiSME! Any letters left at all?

 

[Goes4ever]

That would have stopped my heart to find! Very much looks colonial...1/2 reale? OHH maybe a 1792 DiSME! Any letters left at all?

I cannot see a single letter or number on either side, this baby is smooooth!