| Author |
 Replies: 43 / Views: 7,419 |
|
New Member
16 Posts |
Most Excellent find... http://goccf.com/t/94149Funny thing - I just found one last week; similar by weight (2.28 grams) but not by condition (mine is moderately corroded). You should really consider getting yours graded. I am getting mine graded only to prove to a disbeliever on another forum that I found one of these and it is not a copper planchet. There are some of these known to be struck on silver planchets - I believe on 10 centavo South American planchets. Here is a link to one graded by PCGS that I found on ebay - opening bid of $2999.00: https://www.ebay.com/itm/1957-D-1C-...AOSwlxRfWkG2Here are the dimensions on mine - 1957-D Lincoln Cent (incorrect planchet) Diameter - 0.738 inches Thickness - 0.048 inches Weight - 2.28 grams DIMs for Dominican Republic - 10 Centavos - .900 Silver - .0723 ounces fine weight (about 2.25 grams gross weight) - 1.2 mm (0.047) thick - 17.9 mm (0.704) diameter - US minted between 1939-59   |
|
|
|
Moderator
 United States
188342 Posts |
 to the Community! Your reply was split into its own topic for the proper attention.  |
|
Pillar of the Community
 United States
2843 Posts |
I am a bit confused. Are you suggesting that the corroded and pitted LMC that you posted is really struck on an incorrect planchet? And that someone else on another forum told you that it is not? and that you plan on sending it in to a TPG to prove them wrong? I hope I am reading this wrong! |
|
Pillar of the Community
United States
3237 Posts |
You have every right to waste $50 submitting this for a grade, but I don't think a single person on this forum is gonna tell you it's a good idea.
|
|
New Member
 16 Posts |
Does anyone have information regarding how many 1957-D Lincoln Cents were minted on silver planchets? Or how I could find that info? I found one cent last week that is mostly blackened, but silver on the rim edges and on some of Lincoln's jacket, as well as the date. The reverse is moderately corroded, but you can still see some of the wheat straws and the "ONE CENT". The coin weighs 2.28 grams on my scale versus 3.06 grams for a similarly dated copper cent. I realize the coin is toasted, but I want to confirm that it is non-copper (probably silver) to settle a wager with someone from another forum. The coin pings like a silver dime, feels like a silver dime, and best that I could test with ice & conduction, it melts ice faster than a copper cent. Here are the dimensions on mine - 1957-D Lincoln Cent (incorrect planchet) Diameter - 0.738 inches Thickness - 0.048 inches Weight - 2.28 grams Dominican Republic - 10 Centavos - .900 Silver - .0723 ounces fine weight (about 2.25 grams gross weight) - 1.2 mm (0.047) thick - 17.9 mm (0.704) diameter - US minted between 1939-59 PLMK - THX   |
|
Pillar of the Community
United States
7618 Posts |
... to the Community! There is absolutely no way to know how many off-metal coins are struck in any given year. If the mint were to count and track them they would surely pull them from production before being released. Think about it ... it would be a logistics nightmare! Your coin is severely corroded and suffers from horrific environmental damage. I would bet against you having an off-metal coin. If you are determined that it is struck on a different planchette than intended then by all means submit it for third party authentication. Just be prepared to be disappointed when the results come in. |
|
Pillar of the Community
United States
7618 Posts |
... to the Community! Your coin is severely corroded and suffers from horrific environmental damage. I would bet against you having an off-metal coin. If you are determined that it is struck on a different planchette than intended then by all means submit it for third party authentication. Just be prepared to be disappointed when the results come in. |
|
New Member
16 Posts |
Big Silver, Yes, I am confident the 1957-D LMC is struck on a non-copper planchet (possibly silver). It weighs with corrosion at 2.28 gram vs. 3.06 grams for a 1957 copper cent vs. 2.48 grams for a 1958 Roosevelt dime on my scale. I performed a water displacement test and the coin's density/weight is close to that for silver considering the corrosion built up on the back. I know the coin is damaged and basically worthless, but there is a wager against it, and I do have several free grading vouchers, so I am not worried about that expense. THX for your insight. keyser21 |
|
Pillar of the Community
United States
1667 Posts |
|
|
New Member
United States
6 Posts |
Buy a silver test kit or take it to your LCS and ask them to test it. The kits are about $15. LCS would prob test it for free.
|
|
New Member
16 Posts |
My bad - confusing question.
What I am trying to find out is how many 1957-D silver LMCs are known to exist thru grading such as NGC, PCGS, and other services. I did fine one graded by PCGS. I know the Mints do not have any methods or could track error condition coins so that will forever be unknown.
I appreciate everyone's input about the coin, but I do not need to be reminded the coin is garbage as I have it in hand. But grading or third-party review is the only way I can provide the proof that it is non-copper and win a $100 dollar bet.
|
|
Bedrock of the Community
United States
62064 Posts |
These are not images of the same coin. Note the slabbed ones mintmark is lower than the full image shot. This one is a copper cent that was found outside for a long time. Note the pitting. The image of the slab shows neither. The devices on a struck cent on a dime are a lot closer to the rims:   Weight of wrong planchet errors:  Also you can see the copper in the higher spots. On a cent strong on a dime planchet, you will not see the red color come through. Not a mint error. |
|
Pillar of the Community
United States
7618 Posts |
Quote:
....is the only way I can provide the proof that it is non-copper and win a $100 dollar bet. You can kiss THAT $100 goodbye! |
|
New Member
16 Posts |
coop - Yes, the two LMCs at the start of this thread are different coins if that was your concern. One I found in a 100 pounds of Lincoln Cents I have collected for over 20 years which I just started sorting thru in my spare time. The other was only provided as an example to another forum member of a known PCGS-graded 1957-D struck on what I believe is a 10-centavo silver planchet. I do not believe the one I found was struck on a dime planchet as the dimensions do not line up too well per the below, and the rim edges are crisp as compared to a common LMC. I believe my coin (2.28 grams) is not copper because if it were to start with, then there would be no definition left on the coin after it would have lost about 0.8 grams of mass from corrosive damage. VBR keyser21 1957-D Lincoln Cent (copper) Diameter - 0.749 inches Thickness - 0.059 inches Weight - 3.06 grams 1957-D Lincoln Cent (incorrect planchet) Diameter - 0.738 inches Thickness - 0.048 inches Weight - 2.28 grams 1958-D Roosevelt dime (silver) Diameter - 0.703 inches Thickness - 0.049 inches Weight - 2.48 grams |
|
Pillar of the Community
United States
2843 Posts |
Quote:
then there would be no definition left on the coin after it would have lost about 0.8 grams of mass from corrosive damage Simply not true. Take, for example an acid bathed coin. (google for images) they retain plenty of detail while much of the metal is eaten away. I'm no scientist to explain how or why, but that's the facts. |
|
Pillar of the Community
United States
3237 Posts |
If it were silver, there would be very few things that could corrode it this way. Silver and gold are notoriously inert, which is part of the reason they're prized in jewelry.
|
| |
Replies: 43 / Views: 7,419 |
Posted 09/14/2020 1:03 pm
