1943 P Lincoln Wheat Cent / LWC Steel Cent At 2.99 Grams

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Author	Replies: 6 / Views: 1,797
Jim0815 Pillar of the Community United States 5240 Posts	Posted 05/21/2019 3:17 pm While searching through a mixed bag of cents I came across this 1943 P LMC steel cent. I weigh all of these things and this one is extra heavy at 2.99 grams. My scale is accurate as the ones I have weighed go from 2.63 to 2.75. And yes, it is slightly magnetic. it will stick to an earth magnet. Extra heavy planchet? I know the +- is .13. Report this Post to the Staff

coop Bedrock of the Community United States 62064 Posts	Posted 05/21/2019 3:24 pm 2.7 is a normal one. So it may have been reprocessed and added plating to the surface, or it could be heavy from the residue on the coin. The coin should jump to the magnet. Report this Post to the Staff
Jim0815 Pillar of the Community United States 5240 Posts	Posted 05/21/2019 3:31 pm The top steel cent weighs 2.63 gms the bottom cent is the one that weighs 2.99 gms. Thicknesses are identical. Mr. Coop, there isn't anything more on this cent than usual. Here are some closeups as well. I do not feel this cent was reprocessed as I have many that have been and you can visibly see the added layer after reprocessing and the weight difference is not even close to the ones that have been. Even cents that have been reprocessed weigh about 2.75 gms. Edited by Jim0815 05/21/2019 3:47 pm Report this Post to the Staff
Conder101 Bedrock of the Community United States 17884 Posts	Posted 05/22/2019 1:56 pm What bothers me is the "slightly magnetic" A steel cent should be HIGHLY magnetic. It should jump to a rare earth magnet from about a half inch or more away. Report this Post to the Staff
Jim0815 Pillar of the Community United States 5240 Posts	Posted 05/22/2019 2:31 pm Condor, it doesn't come up to the magnet until it is about a 1/4 of an inch away. I plan on taking it to a jeweler at some point and have them put it under a spectrometer. But for now I am going to chalk it up to a grossly thick stock planchet. Edited by Jim0815 05/22/2019 2:34 pm Report this Post to the Staff
Big-Kingdom Pillar of the Community United States 1667 Posts	Posted 05/22/2019 3:25 pm If that gunk on the coin is some sort of a buildup with a lot of lead particles, it could be reducing the magnetism as well as increasing the weight of the coin. Like say it was sitting in old engine oil from the 1940s or 50s with heavy bearing wear, that surface gunk could contain elevated levels of lead, cadmium, copper, arsenic, a whole host of heavy metals as well as chemicals built up in a layer of dried sludge on the coins surface reducing it's magnetic reactions. Not saying it what it is, but just saying something like that is a possibility. Report this Post to the Staff
Jim0815 Pillar of the Community United States 5240 Posts	Posted 05/22/2019 3:34 pm A lot of zinc plated cents will naturally turn from gray to almost black through circulation. I have many many steel cents that exhibit the same darkness and weigh about .25 - .30 grams less. There is no more zinc buildup on this cent than on any of the others I have. The rim to fields distance is also pretty much the same. I am pleasantly stumped with this cent. The heaviest one I've ever weighed was 2.88 grams. There was one on another site that went 2.90 grams. Edited by Jim0815 05/22/2019 3:35 pm Report this Post to the Staff
	Replies: 6 / Views: 1,797

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1943 P LWC Steel Cent At 2.99 Grams