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 Replies: 20 / Views: 2,923 |
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Moderator
 Canada
10463 Posts |
The photo of the rim does not show it well, but the rim is pristine and shiny...
Sink your teeth into that clue...
"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
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Pillar of the Community
 Canada
632 Posts |
Clue #2 : look at the junction core-ring
... and by the way, someone already nail it
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Pillar of the Community
Canada
1354 Posts |
If its a weak strike.... It must be the weakest ever done...
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Pillar of the Community
Canada
4227 Posts |
Were the machines shutting down?
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Pillar of the Community
Canada
632 Posts |
It is a beautiful example of weak strike.
It is surprising that the core did not fell off during the lifespan of this coin - there was not enough pressure to lock the core in place.
(edited for correctness)
Edited by t_y
08/16/2013 8:07 pm
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Pillar of the Community
Canada
3167 Posts |
Awesome! Thanks for sharing! Its like a ghost coin  |
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Pillar of the Community
Canada
1984 Posts |
Interesting.... The photo does make the coin look like it is heavily worn. Do the surfaces actually show wear marks or does the planchet look like a normal blank would? Is the weight normal?
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Pillar of the Community
Canada
632 Posts |
Weight is normal. Diameter is normal. Thickness at the core level (flat area behind the queen where no devices exist in obv or rev) seems to be a bit thicker than the normal coin but my caliper does not have enough precision to measure fractions of millimeter.
The coin is circulated, down to EF (giving some allowance for the weak strike - edge is of an AU coin)
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Pillar of the Community
Canada
2301 Posts |
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Pillar of the Community
Canada
632 Posts |
Weight is normal. Diameter is normal. Thickness at the core level (flat area behind the queen where no devices exist in obv or rev) seems to be a bit thicker than the normal coin but my caliper does not have enough precision to measure fractions of millimeter.
The coin is circulated, down to EF (giving some allowance for the weak strike - edge is of an AU coin)
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Pillar of the Community
Canada
693 Posts |
Awesome error coin TY! I've never seen a weak strike toonie before.
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Valued Member
Canada
284 Posts |
And I have seen it only once before ;)
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Valued Member
Canada
387 Posts |
The thing that makes it believable is that weight of the coin is the same, although I have no idea how much weight loss would happen if this was worn down and if that weight loss would be within tolerances.
I have toonies with similar condition of the locking area as seen on the obverse and have not been able to figure out why that condition with no upstand/rim happens. Does a condition like that suggest a weak strike?
Hopefully we will see something written about this or perhaps can take a look at it at one of the shows we are planning to meet up at to discuss another coin.
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Pillar of the Community
Canada
632 Posts |
The gap also occur in other cases as when the ring is not annealed. Wear does not decreases the weight significantly in nickel coins.
Other than web forums I have no other venue to publish this type of material. It is "just" an error, not a variety or an important technical topic.
I will have the coin with me at the Toronto show.
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Pillar of the Community
Canada
2301 Posts |
TY, I am looking forward to some quality time with you!!! Supper will be on Roger..............his wallet I mean.....
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First Page
Posted 08/16/2013 12:33 pm
