| Author |
 Replies: 48 / Views: 7,632 |
|
|
|
Bedrock of the Community
Australia
21788 Posts |
I know that the RCM contracted to produce cupronickel 5 cent coins under contract to the New Zealand Government, but I don't have information as to what the actual years were. |
|
Pillar of the Community
Canada
5324 Posts |
Just recently received a similar 1981 penny on an off metal planchet, it's composition is 25% copper and 75% nickel weight 2.79 grams. Twin silver pennies
|
|
Pillar of the Community
United States
1217 Posts |
|
|
Pillar of the Community
 Canada
870 Posts |
smallcentguy mentioned earlier in the thread that in 1989 36 million new Zealand 5 cents were produced by RCM. it wouldn't be too hard for a planchet to get stuck in a machine or transport bin. |
|
Pillar of the Community
Canada
1581 Posts |
Colonial Acres is selling a 2006 specimen set with a toonie that has a centre core containing titanium instead of aluminum.
Where did THAT come from?
|
|
Pillar of the Community
Canada
2632 Posts |
Is there a link for that set?
|
|
Pillar of the Community
Canada
1581 Posts |
|
|
Pillar of the Community
Canada
5324 Posts |
Depends if all 2006 snow owl set toonie core are the same then its not error,
|
|
Pillar of the Community
Canada
1581 Posts |
Titanium is definitely wrong. The standard alloy was copper/aluminum/nickel.
It could be a goof in the sheet coil. But then you'd think there would be lots and lots of these.
|
|
Pillar of the Community
Canada
5324 Posts |
yes, one would guess that if there is one core with this alloy, probably many more like a whole rolls worth of these cores.
|
|
Pillar of the Community
Canada
2632 Posts |
If that analysis is right I assume it probably is then thats a nice error set well worth the money, IMO. Although without an analysis you would never know. There has to be more out there unless it was a single planchet mix up. wish there was an app. for that lol
|
|
Moderator
 Canada
10460 Posts |
There is nothing wrong or abnormal with that Twoonie being offered. The problem is with the analysis that was conducted on it. If you use an old Russian-built XRF, you can expect titanium in just about everything you analyze (titanium alloys are used to shield radiation, the interior shielding of most XRF machines)... I have tested these twoonies with multiple instruments, and even tested one whereby the twoonie was taken apart - they are not compositionally different.
I have told Lower Canada Auctions about this, who sold one at Torex last year, but it fell on deaf ears. I have also had discussions with Bill Cross, who refuses to acknowledge this "titanium twoonie" even exists, unless one of these Russian-XRF tested examples (which all come from one collector) was sent to me for both quantitative SEM analysis and a test on my XRF.
In summary, save your money. You can find these "whitish-cored" Twoonies in many different years of Specimen and PL sets....
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
Edited by SPP-Ottawa
01/12/2014 01:16 am
|
|
Pillar of the Community
Canada
2632 Posts |
Spp to the rescue..lol Glad you chimed in and informed us. I take it back what I said about worth it - "Not worth the money"
|
|
Pillar of the Community
Canada
870 Posts |
I just received my penny back from SPP - Ottawa. what a great guy for testing it and confirming it as a new zealand 5 cent planchet. he also estimated its value between $100 - $150 and graded it AU scratched. the xrf machine confirmed 73% copper and 27% nickel. thanks SPP-Ottawa!
|
|
Pillar of the Community
Canada
1581 Posts |
@SPP: That accounts for the false titanium. But where did the aluminum go? The claimed percentages add to 100%. Are these Russian XRF at all reliable? Without a TPG certification, how could you know you even get the tested set? Did CA verify? Some guy comes in with a set and an XRF results sheet, and they bought it? Does CA expect you to go out an verify the XRF? Will they refund when it fails? |
| |
Replies: 48 / Views: 7,632 |
First Page
Previous Page
Posted 01/10/2014 12:58 am
