1943-d Steel Penny 2.94 grams / Die deterioration?

I'm seeing 2 common weights for 1943... 2.7 grams & 3.11 grams for the copper one. I'm also seeing that people here use a +/-0.13 rule, which this exceeds so thought I'd ask the pros what the dealio is. Also what kind of doubling is that? Thanks

I have attached pictures here.

 

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It is possible that what looks like doubling was caused by the coin being replated, which is also the cause of the excessive weight. IMO.

 

Just googled it, and that would make a lot of sense. Thanks for that.

 

Not sure of the question but yes that has been replated or polished. Common with steelies. They should have a matte finish.
Here's one that is original:

 

I also should point out that it clearly has wear, that was plated over.

 

Steel cent = 2.689 ± 0.1944 grams (early 1943) OR 2.754 ± 0.2268 grams (late 1943) Diameter: 19.05 mm (± 0.0508 mm)

Zinc Cent = 2.500g ± 0.100g (Mid 1982 and after)

Thickness: 1.52 mm (-0.102 mm/+0.152 mm)

Diameter: 19.05 mm (± 0.1016 mm)

[Note: The diameter tolerance beginning with the 1944 cent is ± 0.0508 mm according to a Directive from D.W. Bell, Acting Secretary of the Treasury, Federal Register. The source for ± 0.1016 is the US Mint. The difference is a factor of 2, so the smaller tolerance is likely measured from the midline of the coin and the larger is likely the total diameter.]


Cheap steel for 1943 cents was coated with zinc by several processes, depending on which company was supplying planchets. Although the Mint specified thickness of zinc at 0.0005” (0.127 mm), the reality was that no one much cared. Steel strip was electroplated, hot dipped, hot rolled, heated and sprayed with molten zinc then rolled and just about any other inexpensive process available. This inconsistency was also why the weight of 1943 cents was increased by 1-grain (0.0648 g). This allowed extreme over- and under-weight planchets to be accepted as legal coins. --- Roger Burdette

(I did not get into a lot of detail in the book because production cents was not part of the core subject.)


*0.0005 Ref Page 69, ANNUAL REPORT OF THE DIRECTOR OF THE MINT FOR THE FISCAL YEAR ENDED JUNE 30 1945 INCLUDING REPORT ON THE PRODUCTION OF THE PRECIOUS METALS FOR THE CALENDAR YEAR 1944

 

Just from the first picture I can see that your coin has been replated. That would account for the weight and any doubling you may see.