I DUG THIS 1799 LARGE CENT AT AN OLD HOUSE SITE SATURDAY WHILE ON A RELIC HUNTING TRIP TO VIRGINIA. THE SITE HAD BEEN HUNTED FOR YEARS BUT THE F-75 PROVED ITS SELF TO ME BY PULLING OUT SEVERAL GOOD ITEMS . THE COIN WAS ABOUT 8" DEEP ,I ASLO FOUND SEVERAL FLAT BUTTONS AND A COUPLE OF MINNIE BALLS . I HAVE USED A LOT OF METAL DETECTORS OVER THE LAST 20+ YEARS OF HUNTING AND WAS VERY IMPRESSED WITH DEPTH AND ABILITY TO PICK UP GOOD SIGNALS OUT OF ALL OF THE OLD IRON AROUND THIS HOUSE.