Questions About Doubled Dies.

There are multiple reasons why this is the case, just like there are multiple classes and causes for doubled dies.

Die blanks are not flat, they are conical. So in some cases, if the first hubbing was not complete, only the devices at the center of the coin are doubled.

In other cases the dies may be tilted, rather than misaligned, so the doubling would only show on one side.

An in another case, for Class II and VI doubled dies, there is no misalignment or tilt. Rather improper annealing made the dies too soft and/or the dies expand from heat so the design closer to the edge becomes distorted during the hubbing process.

Read the description of the various classes of doubled dies on error-ref. The phenomenon you're describing typically occurs on Class VIII and IX doubled dies.

@Tanman2001
Thank you.
Until I read your reply, the only way I had thought about misaligned or tilted dies was in the context of the working dies stamping the coins.
That never occurred to me that the hubs that made the working dies may have been misaligned or tilted etc
Distorted hub doubling didn't make sense to me before I read that the dies can be soft on the edge for various reasons.

For personal clarification, were the dies conical when the Mint was using multiple squeeze or did conical shaped dies come about with the single squeeze method ?
I honestly thought the old style dies were flat.

@Samcoin, @OldFordMan I do read those sites, getting it all make sense is the hardest part.
Understanding what you are looking at is a close second.

@coop
I wouldn't really know the things that I have learned without your visual guidance.
I study every coin I touch.
Thank you for your years of sharing your knowledge with others.
You're a great teacher!

EE

Edit. Spelling typo.