2016-D Dime Reverse Proof?

Mostly the case of a LDS die that is aging quickly. Very strong die flow lines on the fields. Edges of the devices are getting mushy at this point. But no die cracks/chips yet.

what do you mean aging quickly coop? do you mean the coin is aging quickly?

The dies can strike up to 1 million Plus on some dies. When the same even happens over and over, like the movement of metal over the planchets, it can cause these wear lines in time. When the die get into the LDS (Late Die State) it starts to show these lines. Often the fields are polished. When this happens it may add die scratches to the dies, removed die flow lines, reduce the depth of the devices. But on your coin, the die has not had a real issues yet. So it looks like it hasn't been polished to remove them. Die clashes, die damage and other events make it a reason for the die to be polished. But you coin is not showing that happened to the die yet. So while there is no premium for this, knowledge of what did/didn't happen to the die is something you might need to know when searching coins. That is why I brought this up.

You mentioned Proof your title. A proof coin is a special coin made with special dies. Not a coin state or strike state. A proof coin usually has the fields very shiny and the devices flat in finish.


Some of the earlier proofs had the cameo (frosted look) only on the first few strike which made them worth more. But the frosting would wear off and the coin would be all shiny. A lot more than a business strike coin:

There were also called Matte Proof coins:

These were not shiny, but flat looking.
So on your coin, it is not a proof die issue. When you look at yours, the fields are flat looking and the devices are shiny. Just the opposite as a proof coin. Just a few side thoughts.

I try to help everyone see what I see or not see on a coin. I feel that is the best way to learn. The information comes a little at a time. You may want to start a file on a word program of information you want to save. Mine is up to over 100 pages already. Also you can right click images and add them to you educational files. Sometimes find an older post is frustrating. So saving them as you go makes a lot of sense. On my image host, I have 6,429 images I've edited for use on forums. Just having access to them when needed save a lot of time searching back on threads.