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Optical Delusion?

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Pillar of the Community
Rackster's Avatar
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4809 Posts
 Posted 03/14/2014  08:19 am Show Profile   Bookmark this topic Add Rackster to your friends list Get a Link to this Message Number of Subscribers
This is a snapshot of the last columns of a 1994 LMC. After looking at the backs of a few hundred, I saw this...I think. I'm not sure if this is just texture from poor copper/zinc bond or if I'm seeing the vertical details of another phantom column. Thoughts? Thanks!

Optical-Delusion?
Bedrock of the Community
coop's Avatar
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62064 Posts
 Posted 03/14/2014  09:20 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Could I see images from a longer shot? I wanted to see if they are outside of the Memorial area.
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kanga's Avatar
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5825 Posts
 Posted 03/14/2014  09:29 am  Show Profile   Bookmark this reply Add kanga to your friends list Get a Link to this Reply
I don't generally get interested in doubling on Memorial cents since they are of the flyspeck type.
But this one is a doozy.
And I see some lesser doubling to the left of the next column.

I don't know who the expert on LM cents is (David Lange?) but someone will come up with a name for you.
Definitely get a pro's opinion.
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Rackster's Avatar
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4809 Posts
 Posted 03/14/2014  10:53 am  Show Profile   Bookmark this reply Add Rackster to your friends list Get a Link to this Reply
Thanks for responding.

Coop - here are the wider shots. Just let me know if you would like a particular area focused on or changed lighting. I'm trying to use a magnifier with a fluorescent lamp which is playing with the camera's optics.



Optical-Delusion?

Optical-Delusion?

Optical-Delusion?
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coop's Avatar
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62064 Posts
 Posted 03/14/2014  11:08 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
I'm thinking these are die scratches. Look above the left cornice? You can see them above that area. Thanks for the extra images.

Side point: You might try taking a wire coat hanger and bend the horizontal part outward to make it a square instead of a triangle. Then tape a layer of plastic grocery bag on to the square frame. Then place the frame in between the light direction before it hits the coin. This will help diffuse the glare. The 2nd extra image is what you want the images to look like. That was the one that helped the most.
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Rackster's Avatar
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4809 Posts
 Posted 03/14/2014  11:42 am  Show Profile   Bookmark this reply Add Rackster to your friends list Get a Link to this Reply
Hi Coop - thanks for taking a second look. I can see a striated appearance on the coin surface, sort of like the striations you can see in your finger nail. The curious thing though is the pillar(like) appearance between the last two columns. It has three tapering lines that seem to resemble the separate details found in the adjacent columns of the Memorial. This especially becomes more pronounced when looking through a loop and holding it on the angle. Take a look at the first post picture. Here it is without the red circle.



Optical-Delusion?
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Rackster's Avatar
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4809 Posts
 Posted 03/14/2014  2:09 pm  Show Profile   Bookmark this reply Add Rackster to your friends list Get a Link to this Reply
Thanks for the lighting tip!

OK, I gave it another shot. Still, very difficult to see the detail even at 60x using an iPhone. The human eye is a wonderful thing to try to imitate.

At the 1 the profile narrows as compared to at 2. I see three non-parallel lines. The trouble, as you note, is that there are other things going on with the surface of the coin, so it looks confusing in 2D but through the loop and holding the coin on an angle, the 3D profile is exaggerated when compared to the other surface texture. So, last attempt to beat the horse and then into the 'pickle jar'. Thanks for taking a look at these Coop. I figured you'd know best.



Optical-Delusion?

Optical-Delusion?
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jpbone's Avatar
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1959 Posts
 Posted 03/14/2014  2:21 pm  Show Profile   Bookmark this reply Add jpbone to your friends list Get a Link to this Reply
Turned out to be an elliptical conclusion instead of an optical illusion? Just kidding. Very interesting. Looks to be normal striations in the texture of the coin. Sure looks like doubling in the close up shot.
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Rackster's Avatar
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4809 Posts
 Posted 03/14/2014  3:05 pm  Show Profile   Bookmark this reply Add Rackster to your friends list Get a Link to this Reply
I enjoy doing the play on words...as you could probably tell so I appreciate the wit. You (and Coop) are probably right. When I compare the striations to the subject feature, some are in parallel. The odd thing is the taper which may be the result of the direction of the last normal column hitting at a slightly different angle. As noted, by the time you are on your 200th 1994, stuff gets blurry in the mind...if not the eye. CAMs become WAMs, and WAMs become CAMs if you know what I mean. But I'm glad to get the second opinions here to be sure I'm not tossing something I'm looking for back into the sea of cents.
Edited by Rackster
03/14/2014 8:13 pm
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CoinsKelly's Avatar
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3453 Posts
 Posted 03/14/2014  5:37 pm  Show Profile   Bookmark this reply Add CoinsKelly to your friends list Get a Link to this Reply
Your word play title was great!
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