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JFK Half 64 Double Mint Mark

 
 
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Valued Member
United States
71 Posts
 Posted 10/12/2019  6:29 pm Show Profile   Bookmark this topic Add jonnin to your friends list Get a Link to this Message
Found another interesting coin in my collection.


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17900 Posts
 Posted 10/12/2019  6:40 pm  Show Profile   Bookmark this reply Add moxking to your friends list Get a Link to this Reply
Wow! A beautiful example. Congratulations.
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United States
13549 Posts
 Posted 10/12/2019  7:32 pm  Show Profile   Bookmark this reply Add Spence to your friends list Get a Link to this Reply
Very nice clear example of a RPM. I think that it is listed here on varietyvista, but you should check for the confirmatory die cracks:

http://www.varietyvista.com/12%20Ke...4DRPM002.htm
"If you climb a good tree, you get a push."
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"The danger we all now face is distinguishing between what is authentic and what is performed."
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Valued Member
United States
71 Posts
 Posted 10/12/2019  8:19 pm  Show Profile   Bookmark this reply Add jonnin to your friends list Get a Link to this Reply
that is a nice resource; I didn't realize this coin had been studied that deeply.

I have no evidence of the die crack. As best as I understand the site and page, that means stage A.



Edited by jonnin
10/12/2019 8:22 pm
Pillar of the Community
United States
1949 Posts
 Posted 10/12/2019  11:17 pm  Show Profile   Bookmark this reply Add Greasy Fingers to your friends list Get a Link to this Reply
We do enjoy seeing photos of the entire coin, front and back
Valued Member
United States
71 Posts
 Posted 10/13/2019  12:05 am  Show Profile   Bookmark this reply Add jonnin to your friends list Get a Link to this Reply
The cheap microscope CAM lacks the field of view to get anything bigger than a small cent.
I scanned it, that does OK but the lighting is what it is.
The I of IGWT is flat. There are a few other little nicks and scratches. All in all though its in pretty good shape for what it probably is (most likely a pulled from change early in life coin).





Edited by jonnin
10/13/2019 12:11 am
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United States
1949 Posts
 Posted 10/13/2019  10:41 am  Show Profile   Bookmark this reply Add Greasy Fingers to your friends list Get a Link to this Reply
Yea, nice looking coin and good rpm find..thanks for the additional photos..
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United States
24635 Posts
 Posted 10/13/2019  1:29 pm  Show Profile   Check Errers and Varietys's eBay Listings Bookmark this reply Add Errers and Varietys to your friends list Get a Link to this Reply
Great find!
More information about Die Deterioration? http://goccf.com/t/317950
Retired U.S. Mint Coin Die Set information. http://goccf.com/t/302961
Machine Doubling Tutorial. http://goccf.com/t/332421
Die states progression on coins. Scroll down, so you can see the different die state progressions. http://goccf.com/t/325638
Die Deterioration Doubling Tutorial. http://goccf.com/t/336470
Split Plate Doubling Tutorial. http://goccf.com/t/357614
2000 P LMC With Retained Struck Through error. http://goccf.com/t/357080
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 Posted 10/13/2019  6:29 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
What might help for lighting your image is to get the light source a bit more over coin. With the light reflecting off the edge of the bust, it tells me the light is too low.

You might need a light source that might bring the light more in where you need it?

I use this type of light on my scopes in the past:
Richard S. Cooper
Some have asked about my images I use and I'm glad to say, you can now you can see the DVD in sections on youtube:
1. Intro, older coins, toned coins 2. Doubled dies 3. Die events, One of a kind errors 4. So called errors, Coin information 5. Coin information Types and Varieties, Overlays
Jefferson nickel doubled dies Wexler/Rebar complete listings

trail dies:http://www.traildies.com/
Valued Member
United States
71 Posts
 Posted 10/14/2019  11:43 am  Show Profile   Bookmark this reply Add jonnin to your friends list Get a Link to this Reply
Thanks for that!
ATM I have a document scanner (the full coin shots) which has no control, it does what it does. Its not ideal. And I have a microscope with a light at the lens that provides bright straight on light or I can turn that off and wave a bright LED flashlight at it until I am happy with it (practice makes perfect here). I don't have a true camera or camera phone etc. One thing at a time, the microscope is new, and next I will get something set up for normal images. I wanted a way to get the details out for now. I am not a big spender on the hobby.

I can do image enhancement algorithms but I have not done that in a few years, need to see if I can find my old code and not sure if I even need it.
Edited by jonnin
10/14/2019 11:45 am
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