I recently found an 83 d lincoln penny that weighs 2.74 grams and is not magnetic so it is not on a zinc coated steel planchet from 43. Can anyone tell me what this might be?
Um...zinc coated steel cents were made in 1943 only and never since or before. Not sure where you are getting that from. Neither zinc nor copper cents are magnetic. A photo would help. Copper - 3.11 grams Zinc - 2.5 grams Anything above 2.5 grams is zinc (unless it is really dirty or has some foreign matter on it). Your scale could be off as well.
Zincoln can be between 2.40-2.60 grams. Inexpensive digital scales have calibration woes and rounding off that sometimes faulty. Use a known calibration weight to calibrate scale if closeness is important. Photos should show if corrosion has added to weight. Jim
Its not the scale. I have a 100 gram weight and calibrate it often. And there is no dirt or foreign matter on the coin. It weighs 2.74 grams.
But you are not measuring things in that range. For that calibrate it with a .10 or .05 gram weight since the difference you are talking about is close to that level. What is the resolution of the scale ? Jim
I have a 100 gram calibration weight for my scale and calibrate it often.and there is no dirt or foreign matter or corrosion on the coin whatsoever so I am quite bewildered as to what It may be.
Ok if its an ordinary penny, can you tell me where I can see other examples of this same penny weighing the same?
Can we see some pictures? It might have just been struck on an overweight planchet (zinc cents should weigh around 2.5g but occasionally are struck out of mint tolerance).
It might be an overweight planchet error. Pictures of the coin on a scale would help us determine that.
Ok so if a coin was a weight or transitional error or whatever the case may be, its value would be determined by how far it is out of the mints tolerances. Thanks very much for your time.Hope i want too much of a pain. Lol
