Error on Miltank E-Reader card? Gold diamond stamp.
Hello! I came across an old Miltank card from 2002 in the e-reader series from the Aquapolis set that has a small gold diamond stamped into the side of the card. Is this a misprint or error? Does it hold more value because of that? The other same card I have does not have this nor do my other cards from the set. Thank you…
