1991 D Kennedy half DDR?

[Fresh find]

Is this doubled die? There's no thinning of the material does not look like a gouge to me and at the bottom it blends in

[MintErrors]

In my opinion, it does look like some sort of worthless doubling, as John Wexler calls it. It's lower, step or shelf like. That A in STATES is definitely thinner on the left side.

From 1990 to 2020 on variety vista, there is just one year with a DDR and it's a proof from 1994-S.

[Fresh find]

MintErrors
All of the A's are thinner on the left side aren't they? What am I missing that my coin doesn't have that these do? I just can't seem to get my eyes to function right on this stuff I really thought the ED photo was really close to what I got except for mine being what I thought was a class 1 with it having a pivot point. Let me see if I can get a better picture The ones I posted were 300 kb

[Fresh find]

The D in United and the entire word state all show doubling... Does this photo look any better than the first one? Because the first one was only 300 kb this one isn't compressed

[MintErrors]

It doesn't change my opinion. To me it's machine doubling. Additionally, there are no documented cases of any others in varietyvista, and one would think, the working dies strike about 250 to 300 thousand Kennedys before being retired that some one else would have reported a gem bu example in the past 30 plus years.

The other two coins you show are documented doubled dies and are not flat and shelf like. Doubled dies are one impression on top of another, on the working die, which is transferred to the coin when struck. Doubled dies show doubling at nearly the same height.

[Fresh find]

MintErrors I really do value your opinion and knowledge. I am not trying to argue with you or persuade you to believe that it is what it's not. I am really trying to learn this. All of the quizzes for MD/doubled die I seem to get right about 90%. But whenever I think I find something and post it on any forum it's always the same thing. I mean I don't know if it's the quality of my equipment for pictures or what but I go through a minimum of a box of pennies a week sometimes two boxes and I've got to hook up on Kennedy halves My wife is a GM of a restaurant and almost every Sunday for the past year a family usually orders about $40 worth of food and pays with Kennedy halves. And I don't think they're doing it for the silver because I've gotten quite a few 64 to 67s and for other dates most of them are in MS condition
I have read all the hub doubling material from variety Vista, wexler's, coin help you, and I forget what the other sites called but it's Mike Diamonds literature on it. I do a lot of reading and I'm usually pretty meticulous about the knowledge that I have on things so I don't put out the wrong information like with the 1982 Lincoln cent I may know everything there is to know about that transitionl year. Watched YouTube videos and read up on the minting process..
Is there some test or quizzes or anything on this site ? I think that would be a good addition if not if any coin question from hub doubling to die clashes to transitional years if there were quizzes and people got badges for them. So when having a conversation we know what level of expertise a person might be in a specific area.
I apologize for this being so long I hope you take the time to read. I really am trying to learn. And I'm not trying to be contradictive although it obviously looks that way I'm just trying to explain what I'm seeing and whatnot So I can get feedback essentially. Just like what you had mentioned before about seeing the different levels on machine doubling and the hub doubling being essentially the same level. I understand that concept, but from what I am seeing on the three somewhat random pictures I posted are doubled dies off of wexler's website and to me there is a depth change in them.
Now on the one I posted the second t and the last e also have (MD) doubling and the second tea is thicker than the first along with the e. And I don't see what I call the ice cream scoop effect that MD is associated with on any of it.
Don't get me wrong I understand that a new discovery is like hitting the lottery I'm not saying that this is a new discovery what I am trying to do is figure out why this doesn't have the same characteristics as other machine doubling. For this to have a pivot point it seems to me that the coin would have to turn at some point of being struck now wouldn't that affect the readed edge and I would think there would be some kind of striations even if it was ejection doubling or any other machine doubling.....
If you actually take the time to read this I much appreciate it and thank you for any feedback

[MintErrors]

Yes, I managed to read it all. I totally understand where you are coming from. Some people can grasp the difference between worthless doubling and a doubled die. Many, many struggle each day with this.

I have gotten verbally beat up and frowned upon on a few forums for saying this, but I will say it again. The first thing people might want to do is research the year and mintmark of the denomination they are searching. If you find a coin that has a potentiaI variety, go to varietyvista first to see if there are any varieties for that year and mint mark. It helps to logically elimate some of the guesswork out of the equation.

Doubled dies are pretty scarce these days. I would have to guess, but I would have to say a person might look through thousands tontens of thousands of coins and not find a doubled die. I be willing to say that a person can potentially see several hundred to a thousand types of worthless doubling before they got lucky and found a doubled die. That's how common the worthless doubling was prior to 2003.

More than likely, if a denomination has been out in circulation and available to the public for 10 or more years, that coin year/mintmarks should have had sufficient time for the attributors and collectors to go through the majority, if not all of the different working dies that made that coin type. If it has not been found in 10 years or more, it's probably too minor to list or is simply not a doubled die. Sure, new discoveries may happen but they are few and far between. It really depends on the coin denomination and how popular it is along with the availability.

I highly suggest believing in the reference sites like varietyvista, coppercoins, doubleddie and other reputable sites like error-ref and even coinworld. If there are varieties listed for the years you are hunting, then there is a chance at finding a match.

The years which had the extreme doubled dies ( 1955, 1958, 1969-S, 1972 DDO-001 and DDO-002) are the best examples to get an idea what type of die impression at the same tonnage occurs when a working die was created as a doubled die. It depends how much the additional impressions were off. Some of the doubled dies could simply show a sliver of the other impression. It might be just enough to see the cookie cutter style lines, split serifs and notching.

https://minterrors.org/index.php/edu...a-doubled-die/

There is an extreme shortage of die varieties and errors as of 2003 or so. Some of the seasoned collectors I know have shifted their attention to cherrypicking World coins, especially European countries. Some amazing varieties and errors are out there. I had the privilege to photograph hundreds of overdates from European countries, most were already slabbed and documented.

One cannot force a coin to become a variety when it is not. There are sooooo many scenarios where worthless doubling can occur it can make peoples head spin. I love to see peoples reactions when they actually see a doubled die for the first time, or just see another one. It's priceless. It's even better when the light bulb lights, and the see a DDO or DDR and they have that.... Aha ! Moment.

Happy hunting.