How Do You See Doubling On A Coin? - Coin Community Forum

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Author	Replies: 7 / Views: 1,077
Wrekkdd Pillar of the Community Canada 3328 Posts	Posted 07/10/2021 11:17 am Hey iv been trying to figure out how to spot double dates and stuff and I'm not sure how to do it. Even the photos iv seen of them I can't really see the doubling unless it's fairly off but iv seen alot of photos where it just looks like there is a normal coin even super close up. So I was wondering, is there a specific angle of a coin to capture doubling or lighting/no lighting that helps to see it. Especially on coins that still have luster because it just looks like the reflection of the raised area on the coin, lije the coin mirroring the flat edge. But ya if you have any advice I'd appreciate it. Also how close up do I have to zoom to catch doubling. Idk if they hold much premium or any but I'm still trying to find my first error even a small one so any advice will be appreciated:). Report this Post to the Staff

papeldog Pillar of the Community Canada 1923 Posts	Posted 07/10/2021 11:30 am I use a 10 power loop when coin is in hand, on the computer I Zoom up in the top right corner 3 dots you can zoom up to 500X or if you have a wheel on your mouse hold the CTRL tap bottom left tab on key board and roll your wheel on the mouse to zoom up or down. Some years are more common then others for doubling 1 cent 1859, 1978, 1979 are good years to search keep searching one will show up tilting the coin in different angles sometimes helps for grade as well as doubling. Happy Hunting Report this Post to the Staff
Wrekkdd Pillar of the Community Canada 3328 Posts	Posted 07/10/2021 11:33 am Thanks alot Report this Post to the Staff
halfamind Pillar of the Community United States 1485 Posts	Posted 07/10/2021 12:07 pm Doubled dies are a lot like comets. There are a few (e.g. 1955-P Lincoln Wheat cent) you can clearly see with the naked eye, but for most, you will need a telescope, er, a loupe. Report this Post to the Staff
okiecoiner Pillar of the Community Canada 5585 Posts	Posted 07/10/2021 12:38 pm The first thing that you have to do is get your feet on the ground and understand what "doublings" are all about and how they happen. You can only do this by individual study, not necessarily asking questions on coin sites. There are a great many articles, studies and books written about doublings. What you have to remember is that ANY manufacturing process, regardless what the machine or process is being used for, will turn out things that are NOT PERFECT! That is why there are tolerances and the understanding that there will always be anomalies. I would suggest that you start with Wexler's studies/papers, but there are a great many other authors. Start with this and then read all of the links along the left side of the page. Here is a start: http://doubleddie.com/58222.html You should get a 5 to 10X loupe to examine your coins. If you start using more than that, the things that you find are essentially worthless. Most should be seen by just a good set of eyes. Probably, but I could be wrong, about 90% of errors that you find add no value at all to a coin. Many actually detract or subtract from the value. The only thing that is going to help you is to study study study and insure the accuracy of the material that you are using. There's lots of bad scoobie floating around on the internet. And don't believe everything that you see on CoinsandCanada. There's lots of BAD info on there, since much of it is just information that sometimes unlearned readers submit and then placed on the site. Edited by okiecoiner 07/10/2021 4:22 pm Report this Post to the Staff
John1 Moderator United States 56855 Posts	Posted 07/10/2021 1:55 pm First step is to learn "doubling". There are many forms of doubling that we need to learn. Here is a very good link,click on the small photos to enlarge them https://koinpro.tripod.com/Articles...Doubling.htm John1 Report this Post to the Staff
Wrekkdd Pillar of the Community Canada 3328 Posts	Posted 07/11/2021 12:35 am Thanks alot for the links guys, just got back from a wedding(first anything iv done since February 2020) so I'm a little drunk but started on the page john1 sent. It's American coins but all in all will help me when I go through it all. Great photos and info even to read and look on my phone. Okiecoiner as well I will read that tomorrow but really appreciate the direct links. I'll have to order a loupe and get to researching while I wait. Also lastly coming hunting feels like treasure hunting:) even if I don't find something though the knowledge is treasure itself:) really enjoying learning about coins Report this Post to the Staff
John1 Moderator United States 56855 Posts	Posted 07/11/2021 04:11 am As to your loupe purchase;10x or 12x or 14x depending on your eye sight. I use a 14x. Hastings triplet is about the best you can get.I mainly use a 14x doublet. Make sure it is a glass lens,not plastic. B&L is a good affordable brand. John1 Report this Post to the Staff
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