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1970 S Memorial Cent Machine Doubling?

 
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Author Previous TopicReplies: 8 / Views: 248Next Topic  
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 Posted 05/07/2021  8:53 pm Show Profile   Bookmark this topic Add KoinKurious to your friends list Get a Link to this Message
Reminder: I'm just starting out...

I believe this is Mechanical Doubling on LIBERTY? (Specific emphasis on RTY.)








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 Posted 05/07/2021  9:15 pm  Show Profile   Bookmark this reply Add Finn70 to your friends list Get a Link to this Reply
Yes, you are correct in your self diagnosis of Machine Doubling on your large date 1970-S LMC.
Welcome to the CCF! Keep searching, you are bound to find something of quality very soon!
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 Posted 05/07/2021  9:31 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
You are on your way. Always feel free to ask questions. That way you can move on to the next layer a lot quicker. We are here to help you learn so then you can teach another.

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 05/07/2021  11:13 pm  Show Profile   Bookmark this reply Add Greasy Fingers to your friends list Get a Link to this Reply
Question for Coop. Yes I agree this is MD...my question is about DDD, would it ever show-up on the second half of LIBERTY (the ERTY and not on LIB)?
I'm by no means a pro and will never claim to be...just my 2 cents
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 Posted 05/07/2021  11:31 pm  Show Profile   Check tropicalbats's eBay Listings Bookmark this reply Add tropicalbats to your friends list Get a Link to this Reply
I once sent a 1984 WDDO-004 to Dr. Wiles since this seemed to be a fairly strong doubled die and not VV listed. He sent it back without listing it as not a doubled die. I don't remember if he called it DDD, but if that isn't a DDO then it would be something like what you are asking about.
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 Posted 05/08/2021  02:08 am  Show Profile   Bookmark this reply Add SamCoin to your friends list Get a Link to this Reply
That's interesting, Tropicalbats. On the flip side of this, there are a few listings I've seen that I'm about 100% sure actually are just DDD and in need of removal (e.g. the 2000-P Jefferson nickel WDDO-001 listed on Brian's Varieties).
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
2000-D Maryland Quarter Rotated Die http://goccf.com/t/394553
1988-P "Reverse of '89": http://goccf.com/t/399390
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 Posted 05/08/2021  11:02 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
On the older style of the dies with the higher profile and the multi hub process, the die wear often showed the strongest on the out edges of the devices near the rims. Often just the outer edge would loose it outer curl, then it would progress to alter the devices further in on the devices.

Eventually the die wear can make the whole device, appear to have moved to the rim:











The die wear pattern lasted a lot longer, but eventually all dies wear out as the continuous same pattern of moving the metal always in the same direction.

But on the single squeeze dies, the profile is a lot lower. The die wear or DDD (Die-Deterioration-Doubling) is different. Instead of affecting the devices, it is affecting the fields, and not the devices.

Note the devices are not affected, but the fields are.

Thus the die breakdown is different. When it starts, it starts on the fields near the closest device to the rim. And after a lot more coins it will start to show on devices, closer and closer to the center. DDD is always in the same direction. To the rims. The breakdown gets so bad that some of the 1980's Zincolns show ridge ring that sometimes rose so tall the devices would no longer form. (A form of Die Deterioration)





When these die are polished, some of the polishing removes totally parts of the depth of the devices that were there. So the metal of the fields maybe moving towards the rims during this breakdown.


But on either processes, die wear affects the devices. As mentioned in at least two, and maybe three different ways. Hope this helps?

CoopHome: What is DDD and ridge ring have in common?
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 05/08/2021  1:04 pm  Show Profile   Bookmark this reply Add KoinKurious to your friends list Get a Link to this Reply
This is excellent stuff. I'm learning a ton.
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 Posted 05/08/2021  2:36 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
We do try hard to please with the right amount of information and sometimes, just a bit more, when we are on the same subject.
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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