I'M ABOUT 5 MONTHS INTO METAL DETECTING WITH AN ACE 250 AND HAVE DONE PRETTY GOOD BUT THRSRS AN OLD BALL FIELD NEAR MY HOME AND I WAS TOLD THAT IT WAS ALL FARM LAND YEARS AGO. I POUNDED THIS FIELD AND PULLED OUT A COUPLE PIECES. JUST WHEN I WAS READY TO MOVE ON I STOPPED ONE DAY AND SAW THEY TOOK ABOUT 3 TO 4 INCHES OFF THE TOP SO FOR THE NEXT COUPLE DAYS I HIT IT AGAIN AND FOUND THIS HALF DIME. IT IS IN BEAUTIFUL CONDITION.