I purchased my DFX from Kelly Co. last month and have been having a great time. The site I'm hunting on is an old stone foundation on a relative's farm in CT. We knew the site had 18th century pottery, nails, pipes and other odds and ends. I was shocked when the first week with my DFX I was getting a 17+ VDI in the stone foundation. I moved a few rocks from the wall and there sitting nicely protected from the elements was this 1777 USA Continental Army General Service enlisted soldier's button. I took it to a military button expert to have it authenticated that following week and was graded as "excellent" condition. From my understanding the only other USA 1777 button's found were near or at Valley Forge. I've attached a picture of the button taken by Don Troiani who wrote the "Militay Buttons of the American Revolution."

Kelly
CT