Got out after dinner, and went back to the old farm house i have hunted on many ocasions, i was getting some 22 shell casings and they register about 55-60 on the meter then i was going along and got a reading just above 80 and it sounded like a coin i dug some dirt and seen a flat spot whear the coin fell of f the dirt , so I looked and thear was an old corroded Indian head cent , I cant read the date it has suffered under much fertilizer, but it was a nail infested earea, i like the tone I,d i can dig the nails if I want to , and i did volenteer a few iron signals , I really like this detector ,