Today's find... 1989D DDO

pretty cool, huh? am I having some good luck lately? What do you think of this one?

 

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I think it's not a doubled die.

 

I think I'm with Merc, looks like possibly machine doubling, not double die.

 

I think that's called plate shift doubling or something like that. I've found a bunch of these, especially for dates in the 80's. Sorry, don't think that one is a keeper.

 

I think you're thinking of split plate doubling (IIRC! lol), and I agree...

 

I thought split plate doubling leaves more of a ghostly like shadowy impression. The pics above show more of a raised impression that machine or mechanical doubling would leave, at least on the 8 it appears that way. I'm not a super expert on error coins though and I could be wrong but then again, the pics make it hard to tell for me.

 

I'd go with DDD - die deterioration doubling.

 

I had dismissed MD due to the lack of a flat, shelf-like appearance. They are raised, and are rounded. Numismat may have it there....

 

No, I think Bonbon had it right. Split plate is exactly as the name implies. The plating actually separates and you can see zinc.

 

But you can see no zinc. At least I can't... Stand by for more pics..

 

Thats why I said it was plate shift doubling like Bonbon said and not split plate like Merc said, they are two different things.

 

these are what I'm talking about.

I need to read up a little more on this.... But here's some more pics.

 

Numismat hit the nail on the head.

http://www.errorvariety.com/OFD/DDD.html

 

Yup, new pics seem to give a better look at it to confirm.

 

Definately DDD.

 

This coin came from a worn out and UPWARDS buckled die . the warped or buckled die OR WHATEVER THE HECK WE WANT TO CALL IT is what causes the sunken in areas on coins. the die was so worn out that the letters had started to wear into a new place on the die. these are still worth keeping and I keep some of them.

One of these days these coins may be worth about as much as a real doubled die , we never can tell. these are close to identical when found because a die problem caused it. this is not like mechanical doubling where each coin is different from the other ones.

 

Don't think it has anything to do with a warped die. This usually happens when the edges around the incuse features on the die start to wear and material is lost. The new gaps create that look where you have a slightly incuse trench and then a crude "ghost" of the feature in relief.
Not sure if anything else can cause it, but if the die was warped you would expect to see some features struck weakly or not at all.

 

Came across these any help on what type of errors?

S

 

go back and reread my post. I was not talking about what looks like doubled letters when I mentioned the die warp. I have found numerous coins like this and they all have the big sunken in place between the date and Lincoln's profile. this is what I was talking about. If you look thru any cent rolls you will definately find the sunken in coins,expessialy the coins with dates in the 80's and 90's during these years the mint must have really put the dies to heavy use.

 

I agree this is die deterioration doubling. I just realized that this may also account for, or be equal to, plate shift doubling. A die is more than just an inverted image of a coin (the striking surface). It also requires a shank and a means of locking the die into the press. If this mechanical assembly becomes worn, movement of the shank could occur during the strike resulting in the "shift" of certain devices on the coin, regardless of the actual condition of the striking surface. Just my two cents.