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 Replies: 16 / Views: 2,580 |
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Pillar of the Community
Singapore
631 Posts |
Hi all, Does this look genuine ? Weight is 26.85g   Edited by Numister
07/24/2022 05:35 am
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Moderator
 United States
34418 Posts |
@num, I assume that you have confirmed that a magnet is not attracted to it, right? What is the specific gravity?
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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Pillar of the Community
 Singapore
631 Posts |
Yup it doesn't like magnets. Didn't check specific gravity.
Honestly, I'm trying to learn more about spotting real / fake coins just purely based on visual inspection
and weighing, as carrying out specific gravity tests when you're out in the coin shops / markets is not practical.
Not to mention, when conducting specific gravity your perimeters have to be laboratory accurate, even if you're off by a hair you might not get an accurate result.
Edited by Numister
07/24/2022 08:13 am
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New Member
United States
17 Posts |
Just one opinion, and with not a lot of experience, but if limited to a visual inspection, it looks fine to me. My only doubt would be in the size of the spiral pattern. All the other features (number of visible spikes, size and number of dots, etc.) look correct for this year.
There are two variants in Meiji 23, where the focus is on the middle stroke of the 3 character. This seems to be the more common variety, more evidence for me it is not a fake.
I look forward to other replies.
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Pillar of the Community
United States
1915 Posts |
I have a few coins like this in my collection.
They look pretty good in hand, under the microscope they are easily seen as cast fakes.
So an overall picture sometimes doesn't say very much.
(edited)
Apart from the odd look of the reverse, overall, your coin looks better than 3 of my fakes after taking them out for a looksee.
But one of my fakes looks better that your coin.
Since you are trying to spot fakes visually then get a loupe or something at least 10X power or even 20X.
I'll edit again and add some close-ups of what to look for, but keep in mind, one of my fakes will not look bad like the others so testing for silver is sort of a "must do".
Edited by Albert
07/24/2022 1:58 pm
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Pillar of the Community
Singapore
631 Posts |
I have examined the coin under a loupe, don't see any signs of pitting or pimples.
Are there other signs of casting ?
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Moderator
United States
34418 Posts |
In addition to pitting and pimples, I would add mushiness of fine details plus a parting line as visual evidence of casting.
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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Pillar of the Community
United States
1915 Posts |
Quote:
Are there other signs of casting ? Yes, poor quality casts are blatently obvious, while others need a closer look. But fakes can also be struck with steel dies on a good looking blank. Some better quality struck fakes are even silver plated. These are three cast and one struck with steel dies. Edited to replace photos and these were not altered to grayscale like the others were.     Edited by Albert
07/25/2022 12:39 am
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Pillar of the Community
Singapore
631 Posts |
The first pic on the top left looks the most convincing, the others have a blurry, sandy look to them.
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Pillar of the Community
United States
1915 Posts |
I replaced previous pictures. The appearance is what happens with extreme magnification. Sometimes more power is too much. Here's a genuine Yen and two cast fakes. If I zeroed in one one letter at high power, it would look blurry and sandy.  Edited by Albert
07/25/2022 12:41 am
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Pillar of the Community
Singapore
631 Posts |
This a closeup of the original coin being discussed in thread.   Edited by Numister
07/25/2022 8:54 pm
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Pillar of the Community
Australia
3831 Posts |
I think it looks fine. It's within Weight Tolerance and nothing screams fake atm |
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New Member
United States
17 Posts |
Albert, no person seems to remark on the difference noted here in red, can you comment?  |
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Pillar of the Community
Singapore
631 Posts |
That's well spotted, didn't notice it until you pointed it out kidorui
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Pillar of the Community
United States
1915 Posts |
Not sure I understand the question about the red circles?
One fake is well made and struck with steel dies and probably silver plated.
The other two are cast and one is better to the eye than the other, but both are easily seen as lesser quality cast under a loupe.
Two are easy to spot as fake, while the other is more difficult just by picture or eye or even under a loupe.
That is why I suggest the next step for the OP is to find out if the coin is silver.
Edited by Albert
07/26/2022 2:25 pm
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New Member
United States
17 Posts |
The inner design with dragon appears to be rotated relative to the outer design with legend on the two cast fakes vs the genuine yen. It surprised me that no person remarked about this very visible difference. But perhaps it is a normal variation in genuine one yen coins.
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Replies: 16 / Views: 2,580 |
Posted 07/24/2022 08:07 am
