Please can someone tell me something about this assayer gothic p. I found this coin cob in Holland. Weight 27,2gr. I found some other on internet. (VERY RARE) the overdate quite rare as unlisted in CT Seville, Spain, cob 8 reales, 1590, assayer P (gothic) to left of shield, rare. with full cross, and 1590 date to right of shield het is een Seville, Spain, 8 reales, 1590 - P I think this is the second piece in the world ? What means gothic P Thanks Coinmaster