went back to the field where I got my large cent monday and this is the toughest field I have ever hunted. Unreal amounts of iron, you just have to creep so slow thru it to get a non ferrous signal and they are few and far between. 1.5 hour hunt tonight I found a harmonic reed piece, 2 more shotgun shells, couple pieces of lead, 1861 fatty injun, the wheat which is beside the large flat button to show the size. It is HUGE.....front is really corroded and I do not see any markings at all on front or back, any clue to the age or anything about it?