I posted this picture before, and from the feedback, annotated it was an example of die deterioration. I just want to confirm that what I see below is not machine doubling? Thank you
I agree. There is also MD on the mintmark and interesting deterioration on the 9's which does not entirely coutour the 9 all around but crossing through it, rising above it, I guess, from underneath.
Machine doubling and die deterioration are both unimportant types of doubling. So, what is the point? Chris
I am just going over my notes. For instance, I am missing the info for the following errors. Not sure if I annotated MD or DDD next to it. Which is which? [/ATTACH]
I think the first image is machine doubling. If it was die deterioration doubling, the deterioration would be going the other way -- towards the rim. A deteriorated die will push the metal outward toward the rim of the coin. Another indication that it is machine doubling is the way it reduces the size of the numerals and mint mark. Do you notice how the 9(s), 6 and S thin out were the doubling occurs? That should tip you off every time.
Your third, fifth and sixth images are examples of die deterioration doubling. The fifth image shows another indication of die deterioration doubling. You can see flow lines in the field. The metal molecules are flowing outward towards the rim. I wouldn't call these errors. They are both normal strikes. In one case, the dies were loose. In the other case the dies are worn from over use.
It is my understanding that there is only 1 d/d variety. If you dont have the one in the red book that looks the same. Then it just doesn't cut the mustard. I could be wrong with my assessment. Saw many that are fools gold. Good luck my friend
