Ya know, over the years I have found two copper COATED steel cents, the first one I thought it might have been an attempt at a counterfeit for profit, (and like Smokey, it seems to have been lost SOMEWHERE in the house) and the second one I thought was a regular wheat penny I had dug in the same hole as a couple of others, did not even look at the date, and forgot about it. While testing a setting on a detector, saw that wheat penny in my desk drawer, tossed it down, ran the coil over it and nothing!, I thought what?, something wrong here? tried a couple of others and all was fine, went over that ONE penny again and, "nothing". Picked it up and looked at it and THEN realized it to be a 1943, which were steel, not bronze, but it looked so brown. I did become a little excited I admit, thinking I may have stumbled upon something really, really, REALLY good. There is the story of a number of copper blanks accidentally mixed with the steel ones in 1943, etc. etc. When that story got out, (I THINK in the early 50's?) seems there was a sort of "craze" going on with the public checking all of their pocket change hoping to score big. I believe that there was one company at that time (at this time, cannot remember the name) that cashed in on the thing by producing copper coated steel cents as novelty items, and selling them I THINK for around 50 cents. I believe I had found two of those , again one of them some copper had worn off, showing both alloys, and the other angled in the right light your can just make out a very slight steel color. I did realize that with some discrimination on the detector one would never detect a steel cent, it being blanked out as junk. Just a short story involving the steel pennies, and yep, I believe Sleepy meant 1943. As far as bringing back the date on that toasted steel coin? I'm thinking not. Could be used to test for sound and numbers on your detector in ALL Metal Mode, IF you should so desire I guess.