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1919 Newfoundland cent with thin flan  
 

 
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Valued Member
Canada
110 Posts
 Posted 08/11/2017  5:06 pm Show Profile   Bookmark this topic Add pimpim to your friends list Get a Link to this Message
I've found a Newfoundland cent with a very thin flan. My picture contains a normal cent 1917. The normal cent has a weight of 5,5 gr and a diameter of 25,5 mm and the odd cent weighs 2,3 gr with a diameter of 24,5mm. I wander if this cent is an error of the mint or it is a novelty. The strike is quite blurr and I don't understand how the mint could fabricate that kind of error because of it's thinnest and the cent is perfectly round. Here are the pictures I've taken with my cell phone. I hope that it will be clear to understand my description.


Bedrock of the Community
Australia
13358 Posts
 Posted 08/11/2017  5:24 pm  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
This coin is quite genuine.
It has suffered from lamination, and a surface layer from both sided has spalled off. The surface layers have fallen off, after the coin was struck, thus showing an indistinct image on what is left of the coin.
The fault has it's origins in the rolling of the bronze strip before the blank was punched out.
A common reason for the lamination is a drop of oil has dropped on the strip during the rolling process and has spread out.
Pillar of the Community
Canada
2329 Posts
 Posted 08/11/2017  5:30 pm  Show Profile   Bookmark this reply Add Altaira to your friends list Get a Link to this Reply
It's not an error, the coin was soaked in acid. Acid eats away from all surfaces leaving a thinner, smaller coin, with devices and lettering also thinned out.
Formerly SlurExe97

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Pillar of the Community
United States
3444 Posts
 Posted 08/11/2017  5:33 pm  Show Profile   Bookmark this reply Add fioti to your friends list Get a Link to this Reply
Now, if you could find the other pieces.....
Pillar of the Community
United States
815 Posts
 Posted 08/11/2017  5:33 pm  Show Profile   Check 999fine's eBay Listings Bookmark this reply Add 999fine to your friends list Get a Link to this Reply
Hmm, so we are at the flip of a coin so to speak...
Still trying to complete my Dansco 7000.
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United States
12422 Posts
 Posted 08/11/2017  5:55 pm  Show Profile   Bookmark this reply Add biokemist6 to your friends list Get a Link to this Reply
Indistinct devices plus lack of a rim(reduced diameter) equals chemical erosion.
ANA R-3151318
Bedrock of the Community
Australia
13358 Posts
 Posted 08/11/2017  6:14 pm  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
Although I have seen quite a few full lamination errors, the acid explanation could well be right.
I note that there is a minor, but distinct difference in the diameter of the two coins pictured.
Lamination would produce a result where the core would remain at the original diameter, and that does not appear to be the case here.
Bedrock of the Community
United States
10520 Posts
 Posted 08/11/2017  6:27 pm  Show Profile   Bookmark this reply Add moxking to your friends list Get a Link to this Reply
I was thinking acid before I opened the subject. I would to agree with that explanation.
Pillar of the Community
Canada
1432 Posts
 Posted 08/11/2017  8:10 pm  Show Profile   Check silverwolf's eBay Listings Bookmark this reply Add silverwolf to your friends list Get a Link to this Reply
so acid ate the entire rim away, I was thinking wrong planchet, but what do I know..
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Canada
2865 Posts
 Posted 08/11/2017  9:29 pm  Show Profile   Check Pacificoin's eBay Listings Bookmark this reply Add Pacificoin to your friends list Get a Link to this Reply
AJ*. * acid job.
Platinum Member ANA1127198
Pillar of the Community
Canada
981 Posts
 Posted 08/11/2017  10:07 pm  Show Profile   Bookmark this reply Add Alan to your friends list Get a Link to this Reply
Is acid yes I agree all devices shrunken equally. Dies can't do that.
Pillar of the Community
United States
1479 Posts
 Posted 08/12/2017  04:38 am  Show Profile   Bookmark this reply Add okiecoiner to your friends list Get a Link to this Reply
It doesn't really have to be "acid" as we know it ... coke or Pepsi will do the same thing (or at least used to). You have to change the liquid out after a while.
Valued Member
Canada
110 Posts
 Posted 08/28/2017  09:33 am  Show Profile   Bookmark this reply Add pimpim to your friends list Get a Link to this Reply
Thank you for your commentaries. I will test myself the acid job and I will give the results eventually.
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