When you dig a 1960 penny out of a fire ant bed. Earlier today I went back to a ballfield where I dug a 1958 silver dime yesterday. Only a few feet from where I found the dime I swung over a big fire ant bed and got a weak high tone signal that sounded just like the silver dime had. I was sure it was another silver dime, but can't cut a plug in an ant bed that big so I dug the target using the hunting knife I use to cut plugs. About 8 inches and hundreds of fire ant stings deep I got the penny.
[attachment 92055 ant.gif]
[attachment 92055 ant.gif]