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 Replies: 21 / Views: 3,988 |
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Valued Member
Canada
444 Posts |
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Bedrock of the Community
Australia
21788 Posts |
I don't think so.
Most probably a nickel PLATED penny.
Quite easily done in a high school lab.
Unfortunately the only cheap and reliable way to find out if genuine nickel or not, is to put a tiny file mark in the edge, and examine the metal underneath with XRF testing.
I say unfortunately, because nickel and copper have nearly the same density, and therefore a pure nickel penny and a nickel plated bronze penny would weigh very nearly the same.
density of copper: 8.93 g/cc.
density of nickel: 8.88 g/cc.
The density of a copper nickel alloy, or a nickel plated bronze would be very similar.
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Pillar of the Community
Canada
1984 Posts |
Looks like a cent on 10 cents to me but it is hard to tell from the photo. You see 1-cent-on-10-cents surprisingly often in 1980. Weighing it and looking at the thickness will tell you whether it is likely a plate job or a planchet error.
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Bedrock of the Community
Australia
21788 Posts |
If it is a wrong planchet, a weight difference will be obvious.
If it is a standard planchet, but made of nickel, copper-nickel or nickel plated bronze, the weight difference will be very tiny, and difficult to measure.
A scale with an insufficient level of accuracy will yield inconclusive results.
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Rest in Peace
1988 Posts |
 ..with sel_69l |
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Valued Member
 Canada
444 Posts |
About 3/4 as thick as a penny, maybe penny dime, but then the strike would be week?
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Pillar of the Community
1844 Posts |
coin remove the cent from the 2 x 2 and take pics of both sides... This will or might help determine what it is...Even if you can take a pic with 2 coins on edge then we could see the difference
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Pillar of the Community
Canada
5324 Posts |
A good weight at post office or coin shop will help, penny on dimes are normally a little offstruck, maybe on a foreign planchet.
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Pillar of the Community
Canada
870 Posts |
http://www.coinscan.com/for/newz.htmlHi coin scavenger. above is a link to a list of new zealand coins struck at the RCM.I have a similar penny that I posted a few months ago which turned out to be stuck on a NZ 5 cent planchet. here is a link to the thread. https://goccf.com/t/163380I don't think you have to scratch it to determine its composition. that will reduce its value in the end. SPP ottawa was kind enough to do the xrf testing for me. good luck!
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Pillar of the Community
 Canada
9865 Posts |
Before you scratch it or have it tested, check it with a magnet and weigh it.
"Dipping" is not considered cleaning...
-from PCGS website
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Rest in Peace
1988 Posts |
Coin Scavenger...I have a 1979 cent coloured gold...Probably an experiment as the guys say...I was keeping a spread sheet of coin (used) weights..A 1980 cent used should weigh approx. 2.756 gr and a 1980 dime used should weigh approx. 2.130 gr...if that helps.
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Pillar of the Community
Canada
2632 Posts |
Nice find..judging by what you say and the pic I would guess a dime planchet, just a wild guess.
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Valued Member
Canada
444 Posts |
Long time but the penny had its official weigh in today.  |
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Valued Member
Canada
444 Posts |
Does the 2.65 gram weight add any clue as to what this coin might be?
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Forum Kid
Canada
1074 Posts |
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Valued Member
Canada
444 Posts |
2.1 grams with boarder missing, not a dime planchet thanks coin kid
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Replies: 21 / Views: 3,988 |
Posted 04/15/2014 07:38 am
