My Tracker IV hit on this at about 5" deep in sticky, gumbo clay dirt. I was working the area in my back yard where the clothe lines were originally located. The signal was not that of a coin, and I new there should not be any pull tabs around this area. But the signal was too strong not to dig. I was as giddy as a school boy in anticipation......dang I'm really liking this hobby!!!
http://youtu.be/AsoLp-_G2XU
http://youtu.be/AsoLp-_G2XU