Earlier this spring I was invited by a fellow Forum member (AirmetTango) to go on a hunt on one of his permissions. I came across a Spanish copper that was a Carlos the Third /4 maravedis 1770-1788. The first two numbers of the date are there being the 17 but the last two digits are not readable. I submitted it to the Garrett searcher and it was put in the most recent edition. This was found with my Ace 400.