2006P obverse DD

[hasfam]

The hunt has been slow but steady and I'm finding a number of minor varieties. I think it will be only a matter of time, sooner than later I hope, that I will find something good.

Anyway, I found a 2006 DD obverse with notches in LIBERTY and the markers match the 2006P-1DO-008 for the obverse but not the reverse. Instead, the reverse markers are closer to the 2006P-1DO-023 although it's not a "perfect" match, but it is close. The 023 seems to be the only DDO for 2006 that has die cracks on the upper part columns 1,2 & 3 which mine does as well. On the other hand, the die crack markers on the obverse match the 008.
Any thoughts or ideas?

Rock

[coppercoins]

Just a kind observation and request....'DD' means nothing numismatically unless it has the 'O' or 'R' attached. All statements made would be much more clear if you switched to the practice of either stating 'DDO' or 'DDR' and did not leave it at 'DD'.

Second thing, die cracks develop on dies with time - many of them develop die cracks. Just because the markers for one die variety on the site show die cracks and another doesn't, this doesn't mean you don't have a later example of the die on the site that did not show die cracks.

Another thing, because of what I said on the above paragraph, the presence or absence of die cracks is not a good marker for die varieties. The actual SHAPE of the die cracks is what you should pay attention to. Every die crack is unique like a lightning bolt or snowflake. They all carry their own characteristics that can be detected with a little study. If you see a die crack on a coin and compare it to a photo, be sure it's the same die crack by looking at its shape and exact location.

[hasfam]

ok on the DDO & DDR. I do know better but was either lazy or rushed, either way no excuse. Will communicate correctly from now on.

I had a feeling on the die cracks but wasn't sure as to how exact they had to be.

From what you are saying then I'm going to assume for the time being that the DDO found is a later die stage.

Thanks for your reply and lesson.
Rock

[hasfam]

I was thinking about the post and what was said about the die cracks and I just wanted to get this clear in my mind. If the presence or absence of a die crack is not a critical marker but the actual shape, then what happens when the die continues it's usage. Won't the die crack typically grow bigger or change in some ways. How does that apply to identifying a particular die? Or would it just be a different die stage, ie; EDS, MDS and LDS? Also, Would it be possible to use the same obverse die with more than one reverse die creating more than one set of attributions or is each one a seperate listing?
I hope these questions are not too way out in left field and I would appreciate the chance to learn and understand these things a little better.
Rock

[coop]

Rock: The die started out with no cracks. If the coin is a variety the first coins would be crack free till the event happened. So it would be an example before/after the die crack. Eventually the crack start to chip away at the die. The chip starts forming and getting larger with continued use. Then as it get larger it is called a die break. The variety is still the same, but the die is aging but is still the same variety. The point is that you look at what makes it a variety first and the cracks/chips/breaks/etc is just denoting later die states that the die is continued to work through till it is retired. Some events are listed, but it just helps to determine die state. Hope this is clear.

[hasfam]

Coop,
Thanks so much. Yes, it is solid in my mind now. Sometimes, it's the most basic simple principals that get hung up in my mind. I just didn't want to assume anything and needed clarification and you did that perfectly.
Thanks again.
Rock

[coppercoins]

Coop - You are assuming that a crack always develops into a break or gains chips, which is not always the case. Every case develops differently and to different degrees.

Rock - My point was that even if a jagged line grows, it still retains at least some of the shape it had while it was developing, and can be uniquely identified if done carefully to one single die.

And do not assume that your die is the same as one listed if you cannot find markers that match. If you do find markers that match identically save the fact that yours has a crack and the one on the site does not, then you would be somewhat safe to assume they are from the same die and that yours was struck later.

[hasfam]

Thanks, I am learning a lot right now. I really do understand a lot more than I did just a couple of days ago. Thanks to you both for taking the time to explain this. I'm sure there are others who will benefit from these little lessons.
Rock

[coppercoins]

That's what it's here for. Someone has to ask sometimes before I can know what to say. I usually only talk to myself when driving. In forums it tends to be a little odd - well, it's always odd, but in forums it tends to be noticed more than when I'm driving.

Thanks for asking, and keep asking. That's how we all learn.