I was looking around ebay a bit, when I saw this. I doesn't look like any form of doubling I know of, but at the same time, it doesn't look like any form of MD either. This is on a 1969-S penny. Thoughts?
The 1969-S DD shows extreme doubling on all the lettering and date. You wouldn't need a closeup of just a couple of letters. A photo of the whole obverse would be better. And you can see LIBERTY is not a match.
Typically DDD is on the side AWAY from the center of the coin. That is true for DDO #1, DDO #2 is much more subtle.
Also, there is always the chance of a new discovery. I mean, physics-fan3.14 has discovered 3 double dies and a RPM, and he's a regular here.
Have you ever sanded a board of wood with an oscillating or rotary sander? Maybe worked on a certain area only to find that you only gummed up the sand paper? Wore it out? Maybe taken all the polishing capability away from your tool? It wears an uneven surface likeable to it's surrounding details. When you get deeper into the die stages one has to look at the surfaces and use them when you are attributing a coin. Don't just look at the devices, look at the die scratches, polishing and over all wear to the actual die. This is a reason why most of us ask for a full obv. and rev.
