Greenstang

I think what  you are asking is if it is possible to have both DD and MD on the same coin, the answer is yes.
Here is an example of the 1969 Doubled Die shown on the top photo with Machine Doubling shown on the bottom photo
Pictures compliments of Ken Potter.
 
 
 

Why not use the NGC paper money forum? 
It's called PMG ( Paper Money Guaranty) and can be found at the bottom of the main page. Just click on the green letters and follow the same as you would for coins.

I think what  you are asking is if it is possible to have both DD and MD on the same coin, the answer is yes.
Here is an example of the 1969 Doubled Die shown on the top photo with Machine Doubling shown on the bottom photo
Pictures compliments of Ken Potter.
 
 
 

Greg,
In response to your email, I have tried to put together a grass roots explanation of the difference between a Doubled Die and Die Deterioration without going into too much detail. I tried to find a photo that was similar to yours for comparison. (WDDO-002)
As you probably know, a DD is produced somewhere during the hubbing process when there was a slight misalignment during the strikes. This is imbedded into the die and does not change throughout the run. As you can see in the photo, the DD shows a serif at the edges where the two strikes were slightly misaligned.
On a DDD which as the name implies is caused by the dies wearing out, the flow of the metal runs over the edge of the worn die towards the rim causing what appears to be a doubling of the image but is not as sharp nor has any serifs.
I'm sure someone could probably explain it better or have something to add but this will give you a general idea.

Good article Kurt, now we have to see how many "newbies" read it before posting one of their rare errors.

Can't be RPM-018, the mm positioning is different.
Maybe another new discovery by Karen?

No, it's a Large Date

Looks like a combination of a plating bubble and zinc rot. Spend it while you can.
 

I agree, that's all that it could be. 

Your half right (or half wrong) it is MD

You didn't say if they were circulated or uncirculated but if they were circulated, then you did good. It would have taken a long time to sell them one at a time so it was best to sell them in a roll.

Hey,
You would probably get a better response if you put this post on the " Ask NGC/NGS" Forum.  Those are the people who can help you.

Good article Kurt, now we have to see how many "newbies" read it before posting one of their rare errors.

You didn't say if they were circulated or uncirculated but if they were circulated, then you did good. It would have taken a long time to sell them one at a time so it was best to sell them in a roll.

What has a 1973 Memorial cent got to do with a 1943 Wheatie? I'm confused as to what you are asking.

And you never stop learning. I read the posts on 2 or 3 different coin forums every day and can always learn something from one of them.
What you have to realize is that an error can only occur during the actual striking of the coin so anytime you see a coin with scratches, gouges, distorted letters, off colour, extreme wear etc., these have probably happened after the coin was struck so it would be classed as damage, not an error.
Here are a couple of websites that may help you distinquish between an error or damage.
error-ref.com     wexlersdoubleddie

This probably one of the most asked questions on any Forum. Everyone is looking for the extremely rare 1982 copper Small Date D cent of which there are only 2 or 3 known to exist.
The following photo  may help you in distinguishing between the two.
There are 3 basic differences in the date.
1- The top of the 8 on the Small Date is smaller than the bottom. (Looks like a snowman) On a Large Date it is closer to the same size.
2- The two on a Small Date has a slight curve near the bottom. On a Large Date it is straight.
3- This is what I go by for an instant recognition of the differences without having to look to closely. On a Small Date, the 2 is farther from the rim than on a Large Date.
 
 

No harm done. It's not a DDO and it's so badly corroded you couldn't do any more damage to it by cleaning it.

If you are referring to a " Ragged Clip", then I think that coin is PMD. There is no sign of the blakesly effect which should be prominent on a coin with that much missing on 1 side.

Agree with everything Just Bob says down to hating counterfeiters. I read on another forum that there are an estimated 2000 sellers from China selling counterfeit coins. Many have been removed from  eBay but they just start up again under a different name. That being said, there is one legitimate seller from China that sells many certified coins from NGC PCGS. I forget his name but if I saw his link, I would recognize it. Perhaps this is who you are referring to.
 

coinwhat-
I did a little research and found the name of the reputable Chinese seller, (Hong Kong actually) His eBay seller ID is confucions.
Right know he only has 5 USA listings but usually has many more 

No harm done. It's not a DDO and it's so badly corroded you couldn't do any more damage to it by cleaning it.

Only need to post once, see other posting for answer.

The reason is the environment. There is no way a quarter can get toned during the minting process.

Your right there is a Die Chip on the 5 and also on the 9.