I dug up a copper or bronzes 4 inch dia concave presidential seal. I was going to place it on ebay and looked at it closer and found some differances. It has 12 arrows, 11 chevrons the eagles head has feathers that are raised up on the back and the winges are different than any I see on the internet also there is no E before Pluris--. Question: Where can I find info on this different presidential seal and does anyone know anything about this. Thanks Richard