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Spread? What Is It? Is It Important To Know About? Doubled Dies.

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 Posted 10/27/2020  07:59 am  Show Profile   Bookmark this reply Add Eyez to your friends list Get a Link to this Reply
awesome thread as always Coop thanks for more knowledge, and glad I could assist in one of your demos lol
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 Posted 10/27/2020  7:19 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
I've been noting a lot of new ones coming by with Machine Doubling thinking it was a doubled die, so I started concentrating on the spread subject. So added this part two to half newer ones to add to their knowledge to improve on their searches. Remember a lot more subjects of interest is found on the CoopHome link. Note it turns blue? Pages of informatim on different subjects there. (There are three pages of subjects there)
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/
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 Posted 01/14/2021  09:21 am  Show Profile   Bookmark this reply Add thegrendel to your friends list Get a Link to this Reply
Truly, a wonderful and educational thread. Doubled die "spread" is something I'm very much interested in. It's a shame that there isn't some sort of scale to grade spread, with, say, the 1955/55 Lincoln as a 10, going down to a 1 for barely discernible spread. The 1955/55 is notable because the spread is greater than the width of the doubled devices. There is actually daylight showing between the images.

Now, with everyone's indulgence, I would like to show an image from a previous post of mine, a 2010 2 Rupees coin from India, the one I call the Raja of Rupees (yes, an obvious pun on the King of Lincolns). Almost as much spread as the 1955/55.


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 Posted 01/14/2021  11:22 am  Show Profile   Bookmark this reply Add That Coin Dude to your friends list Get a Link to this Reply
If you want to find the degree of spread, for Class 1, in PS outline an image of a normal version of the coin, copy it, put your coin in there, and rotate until you get them to line up, then measure the rotation of the 2nd outline.
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 Posted 01/14/2021  1:36 pm  Show Profile   Bookmark this reply Add thegrendel to your friends list Get a Link to this Reply
The image I posted above looks to me like class IV doubling. Degree of rotation wouldn't apply. There ought to be some measure of shift. If only I could figure out how to transpose a micron scale over the image ..
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 Posted 01/14/2021  3:40 pm  Show Profile   Bookmark this reply Add Chase007 to your friends list Get a Link to this Reply
Thank you coop.A treasure trove of information.

You are welcome to add this to your archive.

1963-P 25 Doubled Die, CONECA: 1-O-II, Cherrypickers: FS-25-1963-101 WDDO-001
Edited by Chase007
01/14/2021 3:41 pm
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 Posted 01/14/2021  7:08 pm  Show Profile   Bookmark this reply Add radatat to your friends list Get a Link to this Reply
Great expose Coop from we beginning valued members. Many thanks.
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