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1987-S Proof Set Lincoln DDD DDO

 
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United States
25 Posts
 Posted 03/03/2021  6:51 pm Show Profile   Bookmark this topic Add CHB to your friends list Get a Link to this Message






New at this I an having a problem understanding DDD and DDP Please help
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United States
1259 Posts
 Posted 03/03/2021  7:01 pm  Show Profile   Bookmark this reply Add That Coin Dude to your friends list Get a Link to this Reply
Split plating
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United States
4664 Posts
 Posted 03/03/2021  7:03 pm  Show Profile   Bookmark this reply Add Numisma to your friends list Get a Link to this Reply
This is actually neither, but rather split plating doubling. Proof coins are struck twice (maybe it's more complicated than that; correct me if I'm wrong) and under higher pressure, which can cause the plating on zinc cents to split around the devices where the surface has to flow across a large surface area. You'll also see it on errors like broadstrikes and some normal, well-struck cents. I believe proof cents have a thicker plating to avoid this problem, but it still happens.
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United States
1669 Posts
 Posted 03/03/2021  8:21 pm  Show Profile   Bookmark this reply Add Rothery to your friends list Get a Link to this Reply
Beside the split plating it looks like some of the letters in LIBERTY are starting to develop zinc corrosion problems. Hopefully it won't progress any further.
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5412 Posts
 Posted 03/03/2021  9:42 pm  Show Profile   Bookmark this reply Add merclover to your friends list Get a Link to this Reply

Quote:
Hopefully it won't progress any further.

Zinc rot knows no boundaries. Once started, zinc rot eats and eats and cannot be arrested.

ša va bien aller

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 Posted 03/03/2021  10:06 pm  Show Profile   Bookmark this reply Add Greasy Fingers to your friends list Get a Link to this Reply
If it was mine, I'd use it at one of the self-check out stations and Target or Walmart, let them bag it and have Brinks/Garda drive it away to be rolled and put into circulation...Let somebody get excited about an impared proof finding...(that's what I do with split plated proof cents)
I'm by no means a pro and will never claim to be...just my 2 cents
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