Error And Variety Finds For Box 1 - 9 Of Penny Coin Roll Hunting.

That 1960-D is 1MM-002, nice on the rest.

The last image is showing die wear. How is this different than Die Deterioration?

Die deterioration shows on the fields of the dies and not on the devices:

These are from the newer process of hubbing called a single squeeze dies. They affect the fields, but are also the from the same affect, a die that is wearing out. These dies have a lower profile on the devices and bust. Thus die wear looks different. Again note, the fields are affected, the devices are not. These devices have a higher profile on them and the dies wear differently.

On your coin it is one of the earlier die processes called multi hubbing. It is showing die wear, that makes the devices flow to the rim.

Again note on this image the edge of the devices near the rim are the first areas to be affected. Then as the die ages the die wears more as it ages. The last die state VLDS you can see how the die distorts. Yours is even a later die state than the example I have on the image above. But I have seen designs like this before on wheat cents:

Not a doubled die, just a die event.

CoopHome : Die wear VS DDD

Great finds!