Cool Coin 2 - 1968D Cent on Dime Planchet

StrikeOutXXX · October 14, 2007 8:39AM

Short Version: Friend showed me his 68D Lincoln on a dime planchet, what do you think?

Long Version: I take pictures for a local antique auction to put online. Today when I went, the auctioneer showed me 4 coins he said to "See what those computer friends of yours think". Didn't have the full coin picture equipment, but did the best with what I had. It weights 2.48/2.49 grams and 38.3/38.4 grains. The auctioneer sent this coin in (He thinks in 1969 or 1970 - but may be later) to Coin World Clearinghouse where they did a featured story on it. If anybody has a way to look up the old Coin World article, it would be great to get a copy to include with his coin. What do you think?

Thanks,
Jeff

STONE · October 14, 2007 8:52AM

I'll start the bidding at face, 11c

CaptHenway · October 14, 2007 9:01AM

Is there a copper core? If not, it could be on a foreign planchet. Have him check the weight.
TD

StrikeOutXXX · October 14, 2007 9:03AM

<< <i>Is there a copper core? If not, it could be on a foreign planchet. Have him check the weight.
TD >>

No copper core. Weight is: It weights 2.48/2.49 grams and 38.3/38.4 grains.

He said when they did the article on this in Coin World, they did a scraping to test the material and it came back good. Hopefully someone can find the article from 35 or so years ago.

EDIT: I get you now.... I was going with what he told me, but yea in 68, a dime planchet would be clad... duh. Well, hopefully someone digs out that article...

TomB · October 14, 2007 9:03AM

I see no evidence of copper peaking out from under the nickel anywhere on the coin so it may more likely be some other planchet composition.

LanLord · October 14, 2007 9:37AM

An old silver dime that someone "stealthily" placed into the works?

tightbudget · October 14, 2007 11:51AM

That thing seems pretty well circulated...I would've picked out such a coin in a heartbeat.

CaptHenway · October 14, 2007 12:12PM

<< <i>

<< <i>Is there a copper core? If not, it could be on a foreign planchet. Have him check the weight.
TD >>

No copper core. Weight is: It weights 2.48/2.49 grams and 38.3/38.4 grains.

He said when they did the article on this in Coin World, they did a scraping to test the material and it came back good. Hopefully someone can find the article from 35 or so years ago.

EDIT: I get you now.... I was going with what he told me, but yea in 68, a dime planchet would be clad... duh. Well, hopefully someone digs out that article... >>

There was no copper-nickel colored 2.5 gram foreign coin made in Denver in 1968 or preceding years back to 1945. There was an El Salvador 1 Centavo at that weight, but in 95% copper, 5% zinc that would be the same color as a 1968 cent. It was 16 mm in diameter, which could have been the original size of this piece before it "pancaked" under pressure.

Here's a possibility: An El Salvador centavo planchet that got washed with a batch of copper-nickel planchets, (five cents, dime or quarter) and then struck as a U.S. cent. Long shot, to be sure.

Or, it could be on a silver dime planchet. The U.S. Mints struck 1964-dated silver coins into early 1966, and a blank could have been stuck in a hopper or some machine for two years. Another long shot.

Contact David Camire at NGC to see if they can attempt to attribute it and slab it for you. Please feel free to quote me.

Tom DeLorey

CaptHenway · October 14, 2007 12:13PM

P.S.: I was with Coin World's Collectors Clearinghouse from 1974 to 1978, and we did not test coins by scraping them.
TD

seanq · October 14, 2007 11:47PM

Mike Byers has images of two dimes struck on Phillipines 1 Sentimo planchets in his archives, one dated 1968 and another dated 1970, which look like your coin. Unfortunately, neither holder imaged there has the weight noted. It could also be on a Canadian dime planchet, I remembered seeing this coin before, though the auction text there states that the Canadian dimes were only struck at Philadelphia.

Rather than sell the coin in a small local auction, I suggest contacting an error coin specialist like Mike Byers or Fred Weinberg. Either should be able to tell you exactly what you have, and would likely give you a much better return.

Sean Reynolds

Ppp · November 30, 2020 8:30AM

Hello,

I know it has been about 13 years since the last post however, I would like to restart this thread because I have this coin in my possession. I was was on hold with pcgs on the proper way to send it in when I saw this thread. I weighed the coin to be 2.50 grams. The pictures and back story are identical are the same.

I too cannot find the original clearinghouse coin world article, mentioned in previous posts, on this coin.

Also, in 1968 the Denver mint did produce some silver 1968d Roosevelt dimes, which was not known in the previous thread. See this post showing a graded coin from ngc. https://coins.ha.com/itm/errors/1968-d-dime-struck-on-a-90-silver-planchet-au55-ngc/a/1125-1385.s

In my research I cannot find any information on 1968d penny stamped on a silver planchet.

I think this could be very rare. Comments?

CaptHenway · November 30, 2020 9:20AM

Fascinating.

If you do send it in for authentication, tell them that you want a specific gravity taken BEFORE the coin is slabbed. Should tell if it is silver or not.

1630Boston · November 30, 2020 9:32AM

The were silver planchets in Denver in 1968.

Surprising 1968-D Roosevelt Dime
Struck on a Silver Planchet, AU55
1968-D Dime--Struck on a 90% Silver Planchet--AU55 NGC. 2.5 gm. This piece circulated only briefly before it was saved and recognized for its special nature. Exactly how a 90% silver planchet was struck in 1968 is a mystery, but the weight is consistent with the old silver planchets rather than the new clad composition, and examination of the edge shows no reddish line to suggest a copper core. Unusually well-detailed for the issue, a further clue.

Jimnight · November 30, 2020 9:34AM

Very nice.

CaptHenway · November 30, 2020 1:59PM

As mentioned above when Ye Olde Threade was new, 1964-D were struck as late as early 1966. So, a silver blank would only have had to hide for two years, not four. It is possible.

I can see the damage to the planchet being consistent with it being stuck in the trap door mechanism of a hopper for an extended period of time.

Ppp · December 1, 2020 5:44PM

Thank you for the responses

Capthenway your suggestion makes a lot of sense. The person I got the coin from said he had it since about 1969 and except for a few times it stayed in his safe till now, therefore the coin was in circulation for about one year, yet look how beat up it is.

MsMorrisine · December 1, 2020 5:51PM

any input from other Re: conservation of that green stuff?

Ppp · December 2, 2020 11:25AM

FYI

Just sent the coin in to pcgs.
I will post the results.

Ppp · December 8, 2020 7:44AM

FYI
Just found a 1968d penny was stamped on a dime planchet and graded.

https://coins.ha.com/itm/errors/1968-d-1c-lincoln-cent-on-a-dime-planchet-ms62-anacs/a/1142-9770.s?ic16=ViewItem-BrowseTabs-Inventory-BuyNowFromOwner-ThisAuction-120115

Therefore, we now know both a silver planchet was used to stamp a 1968d dime and a 1968d penny was stamped on a dime planchet.

What are the odds of a 1968d penny being stamped on a silver planchet.
We will see what pcgs says.

Ppp · February 3, 2021 2:57AM

Results are in and it’s been confirmed by pcgs to be a 1968d stuck on a silver dime planchet.

I will start a new thread with the details

Hydrant · February 3, 2021 6:15AM

Thanks for the heads-up, pPp!

abcde12345 · February 3, 2021 7:18AM

@Jimnight said:
Very nice.

Cool Coin 2 - 1968D Cent on Dime Planchet

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