Okkkk Now I'm Confused

great resources and explanation thanks tam and jbuck.

haha what the heck. I've never seen that before. That is pretty sweet.

this is one of my favorites.....

I have been told that chattering or a vibration occurs as the planchet is being struck that creates some Machine Doubling....

That is a good pic of MD wild bill.

Jayman: The dies are hubbed to place the design on the die. Before the single squeeze process the dies were annealed and pressed with a hub. They were allowed to rest a day and then hubbed again. Some dies are hubbed a few times others like the larger dies may be hubbed as many as 10 times. The die may have a different hubbing from a die that was not the same hub as used before. Or the hub may have hubbed many dies the day the firest die is created. The hub may have changed shape (warped) or the devices are now distorted from hub wear. When a die is made, they just don't make one die. Hundreds could have been made. The second hubbing could hae rotated from the first hubbing. So each die might be affected or just one die could have been affected. These should be caught when a sample is struck and observed. SOmetimes they are missed and started production.

Coop, in that last picture, "reverse die used to make cents", that die is not finished yet. It now is turned on a lathe which cuts it down removing the mating notches and giving it a neck that fits inside the collar. It would be helpful to add a picture of a finished rev die. Even better would be pictures of both an anvil and a hammer die so you can see the differences between them.

I got yer back. Check out this article in Popular Science from February 1943, discussing the new silver alloy nickel. Nice photographs of the whole coining process, including lathing of the dies.