Why is this not a double die?
Calling this MD doesn't explain why it is not a doubled die. So lets dig deeper. The areas you are looking at on most of the devices, ask two questions. 1. Is the area affected reducing the devices, or enlarging the devices? Note on Liberty. The tops of the devices are all affected. Does this look like the devices are reduced in size? Yes. Note the tops of the 'BERT', each device is reduced in size. 2. Look to see if the affected areas are flat, shelf like, showing no contour and are on the outside edge of these devices. Well on this coin all 4 these suggestions, are found on your coin. Compared with a normal coin, all these devices reduced in size. What should a doubled die look like on Liberty:
Top image is of a double die. So compared with your coin are these devices larger, or smaller than your coin has?
Here is a second coin:
Do you see the doubling enlarged? Yes. Where do you see the spread? It is on the centers of the coin. On yoru coin the outside edge is showing a reduction on that area. But note the arrows on this fs-102 image? On the centers of some devices you can see the spread in the center of the devices. That is showing how the hub that formed this die was not aligned correctly. So it is enlarged in the center of the devices making it wider. Want to see another one?:
Here is a side by side with a DDO
and one is an example of Machine Doubling
Can you see the differences now? The Machine Doubling
shows the edge of the devices (top) on the upper image, just like your coin. So even with circulation flattening, the lower images devices are wider than the MD example on the top. Does this help? So what did we learn:
1. Machine Doubling
reduces the size of the devices by the machine causing the reduction like a kick in the shins on the fresh struck coin, right after the strike. Machine movement altered the devices.
2. A doubled die is called a doubled die, because of the doubling on the die is created during the creation of the die. Thus each coin struck with that die will show the same exact doubling on each strike of these dies.
So a machine doubled coin is created by the machine.
A doubled die had the doubling on the die, and is not created by the machine.
But a doubled die can still strike a MD example in the same fashion of machine/die movement. Note the yellow arrows.
But Machine Doubling
always reduces the size of the devices even on doubled dies. Where? On the outside edges of the devices.