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 Replies: 9 / Views: 864 |
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Valued Member
Canada
51 Posts |
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Bedrock of the Community
Australia
17304 Posts |
Interesting reverse. Queen seems to have a mustache, and with heavy eyebrows, looks rather angry.  |
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Moderator
Canada
9261 Posts |
Funny you should post this... I had a coin dealer (Richard from Le30Sou) ask me about this same thing... It is a real puzzle...  Although Machine Doubling is quirky, and often can be confined to regions of a given coin, my thought is this cannot be mac hine doubling. I am thinking that this has to be from the sinking of the die, and not the strike, because the whiskers are deeper recessed in the die, and fully struck. But - if that was the case, there would be thousands of 5c with this feature out there.  "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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Valued Member
Canada
146 Posts |
Although the whiskers seems continuous, they are not. The working die bounced, flattening the beaver's head and leaving an imprint of the whiskers. On the image below, I color coded the base of the whiskers showing where it landed after the bounce.  |
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Valued Member
Canada
51 Posts |
Intresting numidan, but if bouncing, the die would be double elsewhere on the die no?
For SPP-Ottawa : Yes I shown the pictures to Richard and told me he was seeing you this evening and would ask your opinion.
Edited by Castor sous
02/12/2020 12:45 pm
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Pillar of the Community
United States
3150 Posts |
Machine Doubling CAN occur on just certain spots/regions on the coin. Since machine/mechanical/strike doubling (it's called by all three names) occurs in the nanoseconds after the die hits the planchet and slightly moves/rotates, the die tends to mainly strike the design areas that are highest in relief. If the whiskers were the deepest recess on the die, with the resulting highest relief on the coin, then that's where it will show. Sometimes it can occur on ALL parts of the coin, sometimes only partial. On US cents, many time you see just the mintmark with MD and the rest of the coin, no problem ... since the mintmark is the highest relief and easiest to, essentially, be slightly spread in the direction of the movement.
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Valued Member
Canada
146 Posts |
Thanks okiecoiner for the explanation.
Quote "Intresting numidan, but if bouncing, the die would be double elsewhere on the die no?"
Hard to see but the leaf on the left seems to have an indication of MD.
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Pillar of the Community
United States
3150 Posts |
In MD, the die doesn't usually "bounce" ... it ever so slightly rotates as the die is coming up off the coin. That's what essentially smudges the design element slightly of to one side. Once someone on the mint floor tightens the screws/adjustments, the movement stops.
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Valued Member
Canada
220 Posts |
And this kind of info and insite is why this site is so great  |
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Moderator
Canada
9261 Posts |
Quote:
Yes I shown the pictures to Richard and told me he was seeing you this evening and would ask your opinion. No coins were discussed. Instead, I introduced Richard to my single malt whisky collection... it was a nice evening! 
"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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Replies: 9 / Views: 864 |
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Posted 02/12/2020 10:38 am
