Machine doubling vs true doubling

[PNWMAKES]

Below are two pictures of two different 1963 D Lincoln cents. The first picture shows true doubling on 963 of the date and is listed as 1DO-002, 2-O-IV+VIII. The second picture is a really good example of worthless machine doubling. I just thought these two side by side might show the difference. On the second picture notice the flat shelf like appearance and the first picture the doubling is almost the same height as the number and is round and not totally flat. I hope I did not break any forum rules doing this. Just wanted to show some good examples.

[MintErrors]

This is a good idea and examples. Here is my input.

• notice the location of the doubling on the ddo, coin to the left. On the MD example, it is not in the same location.
• When doubled dies are created, they were done BEFORE the mint mark was added. The right coin, the MD is also evident on the D mint mark.

Although the coin on the left is a ddo, it doesn't follow the "stereo typical" ddo rules. The doubling is not quite at the same height.

The cookie cutter line is there and extremely strong. There is no presence of sheer lines or damage to the coin on the left.

The coin on the right shows pretty significant lower, shelf like or step like appearance which is classic MD.

The only thing I can suggest is adding the 1963-D to the title to make searching for this post easier.

[PNWMAKES]

Thanks Gary. It won't let me change the title.