1918-P DDR? Dramatic reverse doubling.

[CTRACY]

An interesting find that appears to have fairly dramatic offset hub doubling across the top portion of the reverse. I'm relatively certain it's a 1918 Philadelphia example and couldn't locate a DDR listing to match. Any thought?

[MintErrors]

In my opinion, the coin is well worn, so it can be very difficult to assess what's going on. The die looks extremely well used,and this could be a case where the age of the die is so worn it moves when striking planchets into coins. This results in machine doubling, which is normally lower than the initial strike. It may also look shelf like, or step like.

A Lincoln cent working die can stike around 1 million coins before being retired. As the coins are struck, these dies take on wear, and end up being a little worn.

Doubled dies are exactly what it says. A working die is impressed with more than one impression of the coin design ( prior to 1996). Typically these impressions are at the same pressure, so the depth at which they go into the steel working dies should be raised on the coinat the same height. Since it's on a steel working die, the area of doubling will not move

It's best to wait for additional opinions. If there aren't any matches on varietyvista, coppercoins or doubleddie then it probably is mechanical (worthless) doubling of some sort.

[CTRACY]

Thank you for the input! The area that made me think this was hub doubling was the motto, especially UNUM, as I could see clear separation of the letters both original and doubled. This one struck me as odd as I've never seen strike doubling this pronounced.

[MintErrors]

I've seen some crazy machine doubling, especially on 1972 Lincolns. One of them was so bad, it looked like the date was quadrupled. I will see if I can find it, and if so, add a post about it .