Coin Community Family of Web Sites
Like us on Facebook! Subscribe to our Youtube Channel! Check out our Twitter! Check out our Pinterest!
Username:
Password:
Save Password
Forgot your Password?


Welcome Guest! Need help? Got a question? Inherit some coins?
Our coin forum is completely free! Register Now!

1970 S, Possible Date And Mintmark Doubling

 
To participate in the forum you must log in or register.
Author Previous TopicReplies: 5 / Views: 209Next Topic  
New Member
United States
33 Posts
 Posted 09/22/2020  12:05 am Show Profile   Bookmark this topic Add Taylorism to your friends list Get a Link to this Message
Found this 1970 S cent today. I am still learning to discern Machine Doubling. I believe this is what I have here. Your thoughts? Also, any tips on how to tell apart double dies from Machine Doubling would be great! Any input is appreciated. Thanks!

Pillar of the Community
United States
1270 Posts
 Posted 09/22/2020  12:09 am  Show Profile   Bookmark this reply Add SamCoin to your friends list Get a Link to this Reply
Classic Machine Doubling. Note the way the size of the devices has actually been reduced by the doubled areas? That is caused because the bounce of the die that produces Machine Doubling crimps down the raised features of the coin and reduces them, unlike a doubled die where the device negatives on the die itself are actually doubled, which enlarges raised design features on the coin. Also note the flat, shelf-like appearance of the doubled areas. On a true doubled die, these will have the same gradient as the main impression of the devices, since they are imprinted into the die as part of the same hubbing process.
My best finds:
1996 DDO-001/FS-101: http://goccf.com/t/372066
Two 2000 WAMs in a box: http://goccf.com/t/375240
1995 DDO-001/FS-101: http://goccf.com/t/376071#3225244
New Member
United States
33 Posts
 Posted 09/22/2020  12:22 am  Show Profile   Bookmark this reply Add Taylorism to your friends list Get a Link to this Reply
Yeah the shelf-like appearance of the potential doubling has been my biggest giveaway so far. I like the point about it actually being reduced. As you point out, true doubling would create more, not less. Are there any books that you would reccomend to learn about the actual minting process. I have been reading books about the design of coins and the history of minting, but would love to learn more about the actual process.
Bedrock of the Community
United States
35959 Posts
 Posted 09/22/2020  04:59 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
Just an added FYI: it is a large date.
John1
( I'm no pro, it's just my humble opinion )
Searched 5+ Million Cents Since 1971
Pillar of the Community
United States
1270 Posts
 Posted 09/22/2020  09:57 am  Show Profile   Bookmark this reply Add SamCoin to your friends list Get a Link to this Reply
I recommend reading the descriptions of the various classes of die doubling on John Wexler's website as well as his section on "worthless doubling." I've been in this hobby a reasonably short time and have found that unless you're trying to get to like a PhD level knowledge of coins and delve into the archives of the US mint, all the information you really need is available for free online.
My best finds:
1996 DDO-001/FS-101: http://goccf.com/t/372066
Two 2000 WAMs in a box: http://goccf.com/t/375240
1995 DDO-001/FS-101: http://goccf.com/t/376071#3225244
Pillar of the Community
United States
1752 Posts
 Posted 09/22/2020  10:45 am  Show Profile   Bookmark this reply Add ijn1944 to your friends list Get a Link to this Reply
Nice example of MD.
  Previous TopicReplies: 5 / Views: 209Next Topic  
 
To participate in the forum you must log in or register.



Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2020 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited.
Contact Us  |  Advertise Here  |  Privacy Policy / Terms of Use

Coin Community Forum © 2005 - 2020 Coin Community Forums
It took 0.62 seconds to rattle this change. Powered By: Snitz Forums 2000 Version 3.4.05