Well first off, the devices are not punched. They are created on a master design, then transferred to the master hub:
Then transferred to down the chain of command to the dies. There are steps that today create these all on the design. Nothing is repunched into the dies since 1989 when mintmarks were stopped adding them to the dies after they dies were created.
The area you are looking at is the base of the designs. These are not punched, but just slight die movement during the strike. There is nothing that was even transferred to the design that would be called working hub doubling or a doubled die. That is not present on your coin the hub doubling would be seen on the centers of the devices, not on the outside edges of the devices. The Re-punching of dies ended in 1908 when each die was a creation of its own with several steps that were all added to that die. Machine Doubling
is the most common this to see on coins. This is cause by a loose machine. Not a die issue. A doubled die is showing doubling from the hub onto the die, creating enlarged devices on the die. The Machine Doubling
caused by the machine, can altered the strike on a doubled die called Machine Doubling
. But Machine Doubling
can never create a doubled die, as the doubling is on the die, not caused by the machine. On a doubled die the devices will be enlarged in size on the centers of the devices:
Note on these images, the outside edge is not affected, but note the horizontal spread on these devices? Machine Doubling
, only affects the outside/inside edges of the devices. Also die wear also affects the sides toward the rim.
But note on these images, the spread in on the centers of the devices?
On nickels they are more in a horizontal direction.
On Machine Doubling
the verticals are affected. But on the spread, it is the horizontal areas that are affected on this die.
During the hub process the alignment can be inccorrect. Different hubs can be used creating a doubled die. A damaged/warped hub can create a doubled die on the die. But on your coin you are looking in the wrong area for a doubled die.
Note on the proof nickel how the Machine Doubling
is on the same area as your coins Machine Doubling
Not the outside of the devices on the centers of the devices is where to look. Hope this helps. This is just a 1% answer of what all that is involved in die creation. To learn more about this, check out more answers to questions you've not thought of yet on this link: CoopHome
. Note it is blue in color? When you see that on the site, click on them and they will open up more information on this site. It is a quick reference. On the link I suggested earlier, there are now 15 pages of conversations answering questions and thousands of images to show you what we are discussing. You might be interested in these as they will answer questions that you've not thought of yet. Enjoy. Feel free to ask questions. The best place to do this? Create a new topic with your question. That way others can benefit from the discussion also.