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OK Jean,
Let me see if I can satisfactorily address some of the issues you brought up.
First, the term 'doubled column' is somewhat of an incorrect term. What we are seeing, is actually a portion of the column, and they vary in size. Some examples will also have doubled knees, doubled feet, etc. In fact, even those are only partial impressions made during the single squeeze hubbing process. What we are believing is actually happening is when the hub is being used to impress the image onto a blank die, the initial 'kiss' between the two is interrupted by movement. The die blank is actually conical in shape, so that is why we see the majority of these anomalies in the center of the die, since that is where the very first touch between the hub and die happens.. This 'snap back' into proper alignment is what actually causes the anomalies as we see them. The point in time when the snap back happens determines how much of the impression is affected. The tiny column bars result when the snap back happens very quickly. The longer it takes for the snap back to happen, the stronger the area affected.
There are a few areas on the coin where extra column bars show that are part of the design. Those show in memorial bays 1, 5, 7, and 11. Those are meant to be the columns at the back of the memorial, that can be seen through the front columns.
Now...as far as your coin goes, there is little doubt it is a DDR. The extra thickness, and other things you see are all part of this process. We have had weird examples show up that we can't fully explain, but do know that all come from the same process. I believe your coin needs an in hand examination. I also believe it may be a candidate for inclusion onto the coppercoins web site. Could I have a look at it some time?
If you still don't understand what I am trying to explain, please let me know what it is that still puzzles you, and I will try to expand a bit....OK??
Let me see if I can satisfactorily address some of the issues you brought up.
First, the term 'doubled column' is somewhat of an incorrect term. What we are seeing, is actually a portion of the column, and they vary in size. Some examples will also have doubled knees, doubled feet, etc. In fact, even those are only partial impressions made during the single squeeze hubbing process. What we are believing is actually happening is when the hub is being used to impress the image onto a blank die, the initial 'kiss' between the two is interrupted by movement. The die blank is actually conical in shape, so that is why we see the majority of these anomalies in the center of the die, since that is where the very first touch between the hub and die happens.. This 'snap back' into proper alignment is what actually causes the anomalies as we see them. The point in time when the snap back happens determines how much of the impression is affected. The tiny column bars result when the snap back happens very quickly. The longer it takes for the snap back to happen, the stronger the area affected.
There are a few areas on the coin where extra column bars show that are part of the design. Those show in memorial bays 1, 5, 7, and 11. Those are meant to be the columns at the back of the memorial, that can be seen through the front columns.
Now...as far as your coin goes, there is little doubt it is a DDR. The extra thickness, and other things you see are all part of this process. We have had weird examples show up that we can't fully explain, but do know that all come from the same process. I believe your coin needs an in hand examination. I also believe it may be a candidate for inclusion onto the coppercoins web site. Could I have a look at it some time?
If you still don't understand what I am trying to explain, please let me know what it is that still puzzles you, and I will try to expand a bit....OK??
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